Now offer period OUR API HAS BEEN EXPANDED

New Year: Get our API at a special price. Get it now. Get more detailed color conversion results - perfect for web projects, plugins, internal tools or SaaS applications. Valid from 2025-12-31 up to and including 2026-01-14 (23:59 CET)

API packages & prices X

CSS Gradients:
RGB 50 53 80

Information

close all

Let CSS suggest color gradients from two hues such as the base hue and the complementary color.

Find examples of linear and radial color transitions.

Easy for web design: Copy the CSS code for easy integration on your website.

Let CSS suggest color gradients from two hues such as the base hue and a lighter hue.

Find examples of linear and radial color transitions from Lighter colors.

Simple for web design: copy the CSS code for easy integration on your website.

Let CSS suggest color gradients from two hues such as the base hue and a darker hue.

Find examples of linear and radial color transitions from Darker colors.

Simple for web design: copy the CSS code for easy integration on your website.

Display options

Description

Dark color: low color values appear darker.

The breakdown of the color into the RGB color system: of 255 maximum color components, 50 red, 53 green and 80 blue.

The mixing ratio of these colors results in the displayed hue in the middle of the overlaps.

In the illustration you can see how the color is composed of the three components: red (top),green (bottom right) and blue (bottom left). In the middle you can see the result color.
50 53 80 R G B
In the CMYK color system the color is composed as follows: In this color tone, out of 100 maximum color components, 38 cyan, 34 magenta, none yellow and 69 key.

The mixing ratio of these colors results in the displayed hue in the middle of the overlaps.

In the diagram you can see how the color is composed of the four components cyan (top left),magenta (top right),yellow (bottom right) and black or key (bottom left). In the middle you can see the result color.
38% 34% 0% 69% C M Y K

Verification of their color palette as a manufacturer!

Provide designers and agencies with accurate color values.

Let's go

Lineal

HEX #323550 to HEX #CDCAAF


CSS-Code:

background-image: linear-gradient(135deg, #323550 2%, #CDCAAF 88%);

Radial

HEX #323550 to HEX #CDCAAF


CSS-Code:

background-image: radial-gradient(circle, #323550 2%, #CDCAAF 93%);

 

HEX #CDCAAF to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #CDCAAF 0%, #323550 94%);

 

HEX #CDCAAF to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #CDCAAF 11%, #323550 94%);

Lineal

HEX #323550 to HEX #313C4E


CSS-Code:

background-image: linear-gradient(135deg, #323550 1%, #313C4E 99%);

Radial

HEX #323550 to HEX #313C4E


CSS-Code:

background-image: radial-gradient(circle, #323550 5%, #313C4E 90%);

 

HEX #313C4E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #313C4E 11%, #323550 93%);

 

HEX #313C4E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #313C4E 8%, #323550 87%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: linear-gradient(135deg, #323550 10%, #31344E 92%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: radial-gradient(circle, #323550 9%, #31344E 90%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #31344E 2%, #323550 91%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #31344E 14%, #323550 100%);

 

HEX #323550 to HEX #36314E


CSS-Code:

background-image: linear-gradient(135deg, #323550 4%, #36314E 96%);

 

HEX #323550 to HEX #36314E


CSS-Code:

background-image: radial-gradient(circle, #323550 4%, #36314E 94%);

 

HEX #36314E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #36314E 8%, #323550 94%);

 

HEX #36314E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #36314E 8%, #323550 100%);

 

HEX #323550 to HEX #3E314E


CSS-Code:

background-image: linear-gradient(135deg, #323550 13%, #3E314E 89%);

 

HEX #323550 to HEX #3E314E


CSS-Code:

background-image: radial-gradient(circle, #323550 3%, #3E314E 88%);

 

HEX #3E314E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #3E314E 10%, #323550 99%);

 

HEX #3E314E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #3E314E 10%, #323550 87%);

Lineal

HEX #323550 to HEX #212335


CSS-Code:

background-image: linear-gradient(135deg, #323550 2%, #212335 92%);

Radial

HEX #323550 to HEX #212335


CSS-Code:

background-image: radial-gradient(circle, #323550 5%, #212335 100%);

 

HEX #212335 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #212335 10%, #323550 87%);

 

HEX #212335 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #212335 5%, #323550 93%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: linear-gradient(135deg, #323550 7%, #31344E 97%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: radial-gradient(circle, #323550 5%, #31344E 95%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #31344E 12%, #323550 94%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #31344E 14%, #323550 96%);

 

HEX #323550 to HEX #414568


CSS-Code:

background-image: linear-gradient(135deg, #323550 3%, #414568 93%);

 

HEX #323550 to HEX #414568


CSS-Code:

background-image: radial-gradient(circle, #323550 2%, #414568 92%);

 

HEX #414568 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #414568 9%, #323550 94%);

 

HEX #414568 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #414568 6%, #323550 100%);

 

HEX #323550 to HEX #515681


CSS-Code:

background-image: linear-gradient(135deg, #323550 8%, #515681 97%);

 

HEX #323550 to HEX #515681


CSS-Code:

background-image: radial-gradient(circle, #323550 4%, #515681 97%);

 

HEX #515681 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #515681 11%, #323550 98%);

 

HEX #515681 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #515681 5%, #323550 95%);

Lineal

HEX #323550 to HEX #313C4E


CSS-Code:

background-image: linear-gradient(135deg, #323550 1%, #313C4E 89%);

Radial

HEX #323550 to HEX #313C4E


CSS-Code:

background-image: radial-gradient(circle, #323550 2%, #313C4E 88%);

 

HEX #313C4E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #313C4E 5%, #323550 96%);

 

HEX #313C4E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #313C4E 8%, #323550 87%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: linear-gradient(135deg, #323550 6%, #31344E 92%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: radial-gradient(circle, #323550 8%, #31344E 99%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #31344E 13%, #323550 88%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #31344E 5%, #323550 97%);

 

HEX #323550 to HEX #36314E


CSS-Code:

background-image: linear-gradient(135deg, #323550 8%, #36314E 90%);

 

HEX #323550 to HEX #36314E


CSS-Code:

background-image: radial-gradient(circle, #323550 12%, #36314E 89%);

 

HEX #36314E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #36314E 3%, #323550 88%);

 

HEX #36314E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #36314E 6%, #323550 97%);

 

HEX #323550 to HEX #3E314E


CSS-Code:

background-image: linear-gradient(135deg, #323550 0%, #3E314E 94%);

 

HEX #323550 to HEX #3E314E


CSS-Code:

background-image: radial-gradient(circle, #323550 11%, #3E314E 99%);

 

HEX #3E314E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #3E314E 12%, #323550 91%);

 

HEX #3E314E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #3E314E 4%, #323550 93%);

Lineal

HEX #323550 to HEX #212335


CSS-Code:

background-image: linear-gradient(135deg, #323550 12%, #212335 88%);

Radial

HEX #323550 to HEX #212335


CSS-Code:

background-image: radial-gradient(circle, #323550 12%, #212335 95%);

 

HEX #212335 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #212335 11%, #323550 89%);

 

HEX #212335 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #212335 5%, #323550 86%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: linear-gradient(135deg, #323550 0%, #31344E 90%);

 

HEX #323550 to HEX #31344E


CSS-Code:

background-image: radial-gradient(circle, #323550 10%, #31344E 98%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #31344E 11%, #323550 90%);

 

HEX #31344E to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #31344E 9%, #323550 98%);

 

HEX #323550 to HEX #414568


CSS-Code:

background-image: linear-gradient(135deg, #323550 9%, #414568 92%);

 

HEX #323550 to HEX #414568


CSS-Code:

background-image: radial-gradient(circle, #323550 4%, #414568 95%);

 

HEX #414568 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #414568 12%, #323550 99%);

 

HEX #414568 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #414568 5%, #323550 100%);

 

HEX #323550 to HEX #515681


CSS-Code:

background-image: linear-gradient(135deg, #323550 2%, #515681 89%);

 

HEX #323550 to HEX #515681


CSS-Code:

background-image: radial-gradient(circle, #323550 13%, #515681 88%);

 

HEX #515681 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #515681 0%, #323550 100%);

 

HEX #515681 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #515681 6%, #323550 90%);

Lineal

HEX #323550 to HEX #4E314B


CSS-Code:

background-image: linear-gradient(135deg, #323550 1%, #4E314B 97%);

Radial

HEX #323550 to HEX #4E314B


CSS-Code:

background-image: radial-gradient(circle, #323550 6%, #4E314B 89%);

 

HEX #4E314B to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #4E314B 5%, #323550 92%);

 

HEX #4E314B to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #4E314B 2%, #323550 100%);

 

HEX #323550 to HEX #404E31


CSS-Code:

background-image: linear-gradient(135deg, #323550 11%, #404E31 89%);

 

HEX #323550 to HEX #404E31


CSS-Code:

background-image: radial-gradient(circle, #323550 4%, #404E31 87%);

 

HEX #404E31 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #404E31 10%, #323550 95%);

 

HEX #404E31 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #404E31 12%, #323550 97%);

Lineal

HEX #323550 to HEX #4E3134


CSS-Code:

background-image: linear-gradient(135deg, #323550 7%, #4E3134 88%);

Radial

HEX #323550 to HEX #4E3134


CSS-Code:

background-image: radial-gradient(circle, #323550 14%, #4E3134 90%);

 

HEX #4E3134 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #4E3134 0%, #323550 93%);

 

HEX #4E3134 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #4E3134 9%, #323550 96%);

 

HEX #323550 to HEX #344E31


CSS-Code:

background-image: linear-gradient(135deg, #323550 0%, #344E31 96%);

 

HEX #323550 to HEX #344E31


CSS-Code:

background-image: radial-gradient(circle, #323550 14%, #344E31 86%);

 

HEX #344E31 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #344E31 3%, #323550 98%);

 

HEX #344E31 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #344E31 3%, #323550 93%);

Lineal

HEX #323550 to HEX #4E314B


CSS-Code:

background-image: linear-gradient(135deg, #323550 5%, #4E314B 92%);

Radial

HEX #323550 to HEX #4E314B


CSS-Code:

background-image: radial-gradient(circle, #323550 2%, #4E314B 87%);

 

HEX #4E314B to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #4E314B 4%, #323550 87%);

 

HEX #4E314B to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #4E314B 14%, #323550 95%);

 

HEX #323550 to HEX #4E4B31


CSS-Code:

background-image: linear-gradient(135deg, #323550 9%, #4E4B31 87%);

 

HEX #323550 to HEX #4E4B31


CSS-Code:

background-image: radial-gradient(circle, #323550 0%, #4E4B31 100%);

 

HEX #4E4B31 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #4E4B31 8%, #323550 94%);

 

HEX #4E4B31 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #4E4B31 3%, #323550 87%);

 

HEX #323550 to HEX #314E34


CSS-Code:

background-image: linear-gradient(135deg, #323550 13%, #314E34 92%);

 

HEX #323550 to HEX #314E34


CSS-Code:

background-image: radial-gradient(circle, #323550 10%, #314E34 96%);

 

HEX #314E34 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #314E34 7%, #323550 99%);

 

HEX #314E34 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #314E34 1%, #323550 94%);

Lineal

HEX #323550 to HEX #4E3143


CSS-Code:

background-image: linear-gradient(135deg, #323550 7%, #4E3143 98%);

Radial

HEX #323550 to HEX #4E3143


CSS-Code:

background-image: radial-gradient(circle, #323550 7%, #4E3143 87%);

 

HEX #4E3143 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #4E3143 7%, #323550 93%);

 

HEX #4E3143 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #4E3143 10%, #323550 92%);

 

HEX #323550 to HEX #4E4B31


CSS-Code:

background-image: linear-gradient(135deg, #323550 1%, #4E4B31 86%);

 

HEX #323550 to HEX #4E4B31


CSS-Code:

background-image: radial-gradient(circle, #323550 11%, #4E4B31 86%);

 

HEX #4E4B31 to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #4E4B31 14%, #323550 91%);

 

HEX #4E4B31 to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #4E4B31 5%, #323550 99%);

 

HEX #323550 to HEX #314E3D


CSS-Code:

background-image: linear-gradient(135deg, #323550 13%, #314E3D 86%);

 

HEX #323550 to HEX #314E3D


CSS-Code:

background-image: radial-gradient(circle, #323550 2%, #314E3D 92%);

 

HEX #314E3D to HEX #323550


CSS-Code:

background-image: linear-gradient(135deg, #314E3D 4%, #323550 90%);

 

HEX #314E3D to HEX #323550


CSS-Code:

background-image: radial-gradient(circle, #314E3D 6%, #323550 86%);

Show more color palettes

Services

Colors

RGB to HEX

convert from RGB red green blue to #RRGGBB

RGB to CMYK

convert from RGB red green blue to CMYK cyan / magenta / yellow / black

Icons

RGB to RAL®

convert from RGB red green blue to RAL®-number (RAL 0000)

RGB to HKS®

convert from RGB red green blue to HKS®-number (HKS 00)

RGB to PANTONE®

convert from RGB red green blue to Pantone®-number (Pantone 0000)

RGB to Sherwin Williams®

convert from RGB red green blue to Sherwin Williams®-number (SW 0000)

RGB to NCS®

convert from RGB red green blue to NCS-number (S0000-X00X)

nsc-logo

RGBA to HEX

convert from RGBA red green blue transparency to #RRGGBB

RGBA to CMYK

convert from RGBA red green blue transparency to CMYK cyan / magenta / yellow / black

Icons

RGBA to RAL®

convert from RGBA red green blue transparency to RAL®-number (RAL 0000)

RGBA to HKS®

convert from RGBA red green blue transparency to HKS®-number (HKS 00)

RGBA to PANTONE®

convert from RGBA red green blue transparency to Pantone®-number (Pantone 0000)

RGBA to Sherwin Williams®

convert from RGBA red green blue transparency to Sherwin Williams®-number (SW 0000)

RGBA to NCS®

convert from RGBA red green blue transparency to NCS-number (S0000-X00X)

nsc-logo
Icons

CMYK to HEX

convert from CMYK cyan / magenta / yellow / black to #RRGGBB
Icons

CMYK to RGB

convert from CMYK cyan / magenta / yellow / black to RGB red green blue
Icons

CMYK to RGBA

convert from CMYK cyan / magenta / yellow / black to RGBA red green blue transparency
Icons

CMYK to RAL®

convert from CMYK cyan / magenta / yellow / black to RAL®-number (RAL 0000)
Icons

CMYK to HKS®

convert from CMYK cyan / magenta / yellow / black to HKS®-number (HKS 00)
Icons

CMYK to PANTONE®

convert from CMYK cyan / magenta / yellow / black to Pantone®-number (Pantone 0000)
Icons

CMYK to Sherwin Williams®

convert from CMYK cyan / magenta / yellow / black to Sherwin Williams®-number (SW 0000)
Icons

CMYK to NCS®

convert from CMYK cyan / magenta / yellow / black to NCS-number (S0000-X00X)

nsc-logo

HEX to RGB

convert from #RRGGBB to RGB red green blue

HEX to RGBA

convert from #RRGGBB to RGBA red green blue transparency

HEX to CMYK

convert from #RRGGBB to CMYK cyan / magenta / yellow / black

Icons

HEX to RAL®

convert from #RRGGBB to RAL®-number (RAL 0000)

HEX to HKS®

convert from #RRGGBB to HKS®-number (HKS 00)

HEX to PANTONE®

convert from #RRGGBB to Pantone®-number (Pantone 0000)

HEX to Sherwin Williams®

convert from #RRGGBB to Sherwin Williams®-number (SW 0000)

HEX to NCS®

convert from #RRGGBB to NCS-number (S0000-X00X)

nsc-logo

RAL® to RGB

convert from RAL®-number (RAL 0000) to RGB red green blue

RAL® to RGBA

convert from RAL®-number (RAL 0000) to RGBA red green blue transparency

RAL® to CMYK

convert from RAL®-number (RAL 0000) to CMYK cyan / magenta / yellow / black

Icons

RAL® to HEX

convert from RAL®-number (RAL 0000) to #RRGGBB

RAL® to HKS®

convert from RAL®-number (RAL 0000) to HKS®-number (HKS 00)

RAL® to PANTONE®

convert from RAL®-number (RAL 0000) to Pantone®-number (Pantone 0000)

RAL® to Sherwin Williams®

convert from RAL®-number (RAL 0000) to Sherwin Williams®-number (SW 0000)

RAL® to NCS®

convert from RAL®-number (RAL 0000) to NCS-number (S0000-X00X)

nsc-logo

HKS® to RGB

convert from HKS®-number (HKS 00) to RGB red green blue

HKS® to RGBA

convert from HKS®-number (HKS 00) to RGBA red green blue transparency

HKS® to CMYK

convert from HKS®-number (HKS 00) to CMYK cyan / magenta / yellow / black

Icons

HKS® to HEX

convert from HKS®-number (HKS 00) to #RRGGBB

HKS® to RAL®

convert from HKS®-number (HKS 00) to RAL®-number (RAL 0000)

HKS® to PANTONE®

convert from HKS®-number (HKS 00) to Pantone®-number (Pantone 0000)

HKS® to Sherwin Williams®

convert from HKS®-number (HKS 00) to Sherwin Williams®-number (SW 0000)

HKS® to NCS®

convert from HKS®-number (HKS 00) to NCS-number (S0000-X00X)

nsc-logo

PANTONE® to RGB

convert from Pantone®-number (Pantone 0000) to RGB red green blue

PANTONE® to RGBA

convert from Pantone®-number (Pantone 0000) to RGBA red green blue transparency

PANTONE® to CMYK

convert from Pantone®-number (Pantone 0000) to CMYK cyan / magenta / yellow / black

Icons

PANTONE® to HEX

convert from Pantone®-number (Pantone 0000) to #RRGGBB

PANTONE® to RAL®

convert from Pantone®-number (Pantone 0000) to RAL®-number (RAL 0000)

PANTONE® to HKS®

convert from Pantone®-number (Pantone 0000) to HKS®-number (HKS 00)

PANTONE® to Sherwin Williams®

convert from Pantone®-number (Pantone 0000) to Sherwin Williams®-number (SW 0000)

PANTONE® to NCS®

convert from Pantone®-number (Pantone 0000) to NCS-number (S0000-X00X)

nsc-logo

Sherwin Williams® to RGB

convert from Sherwin Williams®-number (SW 0000) to RGB red green blue

Sherwin Williams® to RGBA

convert from Sherwin Williams®-number (SW 0000) to RGBA red green blue transparency

Sherwin Williams® to CMYK

convert from Sherwin Williams®-number (SW 0000) to CMYK cyan / magenta / yellow / black

Icons

Sherwin Williams® to HEX

convert from Sherwin Williams®-number (SW 0000) to #RRGGBB

Sherwin Williams® to RAL®

convert from Sherwin Williams®-number (SW 0000) to RAL®-number (RAL 0000)

Sherwin Williams® to HKS®

convert from Sherwin Williams®-number (SW 0000) to HKS®-number (HKS 00)

Sherwin Williams® to PANTONE®

convert from Sherwin Williams®-number (SW 0000) to Pantone®-number (Pantone 0000)

Sherwin Williams® to NCS®

convert from Sherwin Williams®-number (SW 0000) to NCS-number (S0000-X00X)

nsc-logo
nsc-logo

NCS® to RGB

convert from NCS-number (S0000-X00X) to RGB red green blue
nsc-logo

NCS® to RGBA

convert from NCS-number (S0000-X00X) to RGBA red green blue transparency
nsc-logo

NCS® to CMYK

convert from NCS-number (S0000-X00X) to CMYK cyan / magenta / yellow / black

Icons
nsc-logo

NCS® to HEX

convert from NCS-number (S0000-X00X) to #RRGGBB
nsc-logo

NCS® to RAL®

convert from NCS-number (S0000-X00X) to RAL®-number (RAL 0000)
nsc-logo

NCS® to HKS®

convert from NCS-number (S0000-X00X) to HKS®-number (HKS 00)
nsc-logo

NCS® to PANTONE®

convert from NCS-number (S0000-X00X) to Pantone®-number (Pantone 0000)

To be able to save color palettes, a registration is required.

Log in to your account

or

Create an account

Current color palette Share
Should it be public or private?
Link(s) will follow after sharing.

Cancel Share

Color palette shared
Please copy and save the desired link.

Share

OK, I have copied the links

Your colors will be saved in a new color palette.
View them under your profile.
You can customize them further, and share them.

Show color palette
Close

Create a color palette

DownloadDownload in different formats

Remove All

By clicking on you can create palettes and download the color swatches.

© 2019-2026 - Designed by frag-bobby.de