New: API packages available

Our new API now gives you even more control over color conversion - perfect for web projects, plugins, internal tools or SaaS applications.
Create multiple API keys, manage your monthly token quota and flexibly integrate qConv into your applications.

Up to 2025-08-15: Introductory prices on all packages!

VIEW NOW X

CSS Gradients:
RGB 21 3 6

Information

close all

We suggest CSS gradients from two color tones such as the base color 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.

Get CSS gradients from two color tones like the base color and a lighter shade.

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 us suggest CSS gradients from two shades like the base color and a darker shade.

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

Easy 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, 21 red, 3 green and 6 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.
21 3 6 R G B
In the CMYK color system the color is composed as follows: In this color tone, out of 100 maximum color components, none cyan, 86 magenta, 71 yellow and 92 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.
0% 86% 71% 92% 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 #150306 to HEX #EAFCF9


CSS-Code:

background-image: linear-gradient(135deg, #150306 14%, #EAFCF9 89%);

Radial

HEX #150306 to HEX #EAFCF9


CSS-Code:

background-image: radial-gradient(circle, #150306 7%, #EAFCF9 99%);

 

HEX #EAFCF9 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #EAFCF9 2%, #150306 87%);

 

HEX #EAFCF9 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #EAFCF9 8%, #150306 92%);

Lineal

HEX #150306 to HEX #16030B


CSS-Code:

background-image: linear-gradient(135deg, #150306 5%, #16030B 100%);

Radial

HEX #150306 to HEX #16030B


CSS-Code:

background-image: radial-gradient(circle, #150306 1%, #16030B 86%);

 

HEX #16030B to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #16030B 9%, #150306 97%);

 

HEX #16030B to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #16030B 11%, #150306 97%);

 

HEX #150306 to HEX #160306


CSS-Code:

background-image: linear-gradient(135deg, #150306 14%, #160306 87%);

 

HEX #150306 to HEX #160306


CSS-Code:

background-image: radial-gradient(circle, #150306 8%, #160306 99%);

 

HEX #160306 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #160306 1%, #150306 90%);

 

HEX #160306 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #160306 0%, #150306 95%);

 

HEX #150306 to HEX #160503


CSS-Code:

background-image: linear-gradient(135deg, #150306 5%, #160503 88%);

 

HEX #150306 to HEX #160503


CSS-Code:

background-image: radial-gradient(circle, #150306 7%, #160503 91%);

 

HEX #160503 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #160503 6%, #150306 90%);

 

HEX #160503 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #160503 11%, #150306 100%);

 

HEX #150306 to HEX #160A03


CSS-Code:

background-image: linear-gradient(135deg, #150306 7%, #160A03 89%);

 

HEX #150306 to HEX #160A03


CSS-Code:

background-image: radial-gradient(circle, #150306 9%, #160A03 100%);

 

HEX #160A03 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #160A03 0%, #150306 100%);

 

HEX #160A03 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #160A03 5%, #150306 95%);

Lineal

HEX #150306 to HEX #16030B


CSS-Code:

background-image: linear-gradient(135deg, #150306 4%, #16030B 98%);

Radial

HEX #150306 to HEX #16030B


CSS-Code:

background-image: radial-gradient(circle, #150306 10%, #16030B 94%);

 

HEX #16030B to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #16030B 14%, #150306 91%);

 

HEX #16030B to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #16030B 8%, #150306 98%);

 

HEX #150306 to HEX #160306


CSS-Code:

background-image: linear-gradient(135deg, #150306 9%, #160306 95%);

 

HEX #150306 to HEX #160306


CSS-Code:

background-image: radial-gradient(circle, #150306 14%, #160306 95%);

 

HEX #160306 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #160306 12%, #150306 98%);

 

HEX #160306 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #160306 7%, #150306 97%);

 

HEX #150306 to HEX #160503


CSS-Code:

background-image: linear-gradient(135deg, #150306 0%, #160503 94%);

 

HEX #150306 to HEX #160503


CSS-Code:

background-image: radial-gradient(circle, #150306 0%, #160503 89%);

 

HEX #160503 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #160503 12%, #150306 86%);

 

HEX #160503 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #160503 12%, #150306 98%);

 

HEX #150306 to HEX #160A03


CSS-Code:

background-image: linear-gradient(135deg, #150306 6%, #160A03 95%);

 

HEX #150306 to HEX #160A03


CSS-Code:

background-image: radial-gradient(circle, #150306 11%, #160A03 93%);

 

HEX #160A03 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #160A03 3%, #150306 90%);

 

HEX #160A03 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #160A03 10%, #150306 97%);

Lineal

HEX #150306 to HEX #151603


CSS-Code:

background-image: linear-gradient(135deg, #150306 1%, #151603 86%);

Radial

HEX #150306 to HEX #151603


CSS-Code:

background-image: radial-gradient(circle, #150306 0%, #151603 98%);

 

HEX #151603 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #151603 1%, #150306 90%);

 

HEX #151603 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #151603 8%, #150306 86%);

 

HEX #150306 to HEX #030E16


CSS-Code:

background-image: linear-gradient(135deg, #150306 4%, #030E16 89%);

 

HEX #150306 to HEX #030E16


CSS-Code:

background-image: radial-gradient(circle, #150306 9%, #030E16 99%);

 

HEX #030E16 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #030E16 10%, #150306 92%);

 

HEX #030E16 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #030E16 7%, #150306 90%);

Lineal

HEX #150306 to HEX #061603


CSS-Code:

background-image: linear-gradient(135deg, #150306 11%, #061603 87%);

Radial

HEX #150306 to HEX #061603


CSS-Code:

background-image: radial-gradient(circle, #150306 3%, #061603 97%);

 

HEX #061603 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #061603 1%, #150306 91%);

 

HEX #061603 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #061603 5%, #150306 96%);

 

HEX #150306 to HEX #030616


CSS-Code:

background-image: linear-gradient(135deg, #150306 7%, #030616 94%);

 

HEX #150306 to HEX #030616


CSS-Code:

background-image: radial-gradient(circle, #150306 13%, #030616 94%);

 

HEX #030616 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #030616 7%, #150306 87%);

 

HEX #030616 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #030616 0%, #150306 89%);

Lineal

HEX #150306 to HEX #151603


CSS-Code:

background-image: linear-gradient(135deg, #150306 2%, #151603 92%);

Radial

HEX #150306 to HEX #151603


CSS-Code:

background-image: radial-gradient(circle, #150306 13%, #151603 92%);

 

HEX #151603 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #151603 7%, #150306 88%);

 

HEX #151603 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #151603 6%, #150306 98%);

 

HEX #150306 to HEX #031613


CSS-Code:

background-image: linear-gradient(135deg, #150306 0%, #031613 98%);

 

HEX #150306 to HEX #031613


CSS-Code:

background-image: radial-gradient(circle, #150306 13%, #031613 87%);

 

HEX #031613 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #031613 4%, #150306 93%);

 

HEX #031613 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #031613 4%, #150306 100%);

 

HEX #150306 to HEX #030316


CSS-Code:

background-image: linear-gradient(135deg, #150306 5%, #030316 89%);

 

HEX #150306 to HEX #030316


CSS-Code:

background-image: radial-gradient(circle, #150306 2%, #030316 92%);

 

HEX #030316 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #030316 7%, #150306 96%);

 

HEX #030316 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #030316 9%, #150306 92%);

Lineal

HEX #150306 to HEX #0F1603


CSS-Code:

background-image: linear-gradient(135deg, #150306 5%, #0F1603 96%);

Radial

HEX #150306 to HEX #0F1603


CSS-Code:

background-image: radial-gradient(circle, #150306 1%, #0F1603 87%);

 

HEX #0F1603 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #0F1603 1%, #150306 97%);

 

HEX #0F1603 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #0F1603 9%, #150306 87%);

 

HEX #150306 to HEX #031613


CSS-Code:

background-image: linear-gradient(135deg, #150306 1%, #031613 88%);

 

HEX #150306 to HEX #031613


CSS-Code:

background-image: radial-gradient(circle, #150306 11%, #031613 95%);

 

HEX #031613 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #031613 8%, #150306 96%);

 

HEX #031613 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #031613 1%, #150306 89%);

 

HEX #150306 to HEX #090316


CSS-Code:

background-image: linear-gradient(135deg, #150306 7%, #090316 91%);

 

HEX #150306 to HEX #090316


CSS-Code:

background-image: radial-gradient(circle, #150306 10%, #090316 86%);

 

HEX #090316 to HEX #150306


CSS-Code:

background-image: linear-gradient(135deg, #090316 2%, #150306 98%);

 

HEX #090316 to HEX #150306


CSS-Code:

background-image: radial-gradient(circle, #090316 13%, #150306 87%);

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

CMYK to HEX

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

CMYK to RGB

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

CMYK to RGBA

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

CMYK to RAL®

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

CMYK to HKS®

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

CMYK to PANTONE®

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

CMYK to Sherwin Williams®

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

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

NCS® to RGB

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

NCS® to RGBA

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

NCS® to CMYK

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

Icons

NCS® to HEX

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

NCS® to RAL®

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

NCS® to HKS®

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

NCS® to PANTONE®

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

To be able to save color palettes, you must be logged in.

Sign 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 link you want.

Share

OK, I have copied the links

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

Show color palette
Close

Create a color palette

DownloadDownload in different formats

Remove All

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