Now offer period OUR API HAS BEEN EXPANDED

Black Friday week: 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 2025-11-24 up to and including 2025-11-30 (23:59 CET)

API packages & prices X

CSS Gradients:
RGBA 23 8 31 0.5

Information

close all

2-color gradients - Complementary color

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.

2-color gradients - Lighter colors

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.

2-color gradients - Darker colors

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, 23 red, 8 green and 31 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.

In the CMYK color system the color is composed as follows: In this color tone, out of 100 maximum color components, 13 cyan, 37 magenta, none yellow and 44 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.

Verification of their color palette as a manufacturer!

Provide designers and agencies with accurate color values.

Let's go

2-color gradients of RGBA 23 8 31 0.5 - Complementary color

Lineal

HEX #17081F7F to HEX #E8F7E07F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 6%, #E8F7E07F 89%);

Radial

HEX #17081F7F to HEX #E8F7E07F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 12%, #E8F7E07F 92%);

HEX #E8F7E07F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #E8F7E07F 11%, #17081F7F 89%);

HEX #E8F7E07F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #E8F7E07F 8%, #17081F7F 88%);

2-color gradients of RGBA 23 8 31 0.5 - Lighter colors

Lineal

HEX #17081F7F to HEX #1208207F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 5%, #1208207F 88%);

Radial

HEX #17081F7F to HEX #1208207F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 2%, #1208207F 86%);

HEX #1208207F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #1208207F 7%, #17081F7F 94%);

HEX #1208207F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #1208207F 9%, #17081F7F 92%);

HEX #17081F7F to HEX #1808207F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 7%, #1808207F 96%);

HEX #17081F7F to HEX #1808207F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 4%, #1808207F 87%);

HEX #1808207F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #1808207F 2%, #17081F7F 93%);

HEX #1808207F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #1808207F 2%, #17081F7F 100%);

HEX #17081F7F to HEX #1E08207F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 7%, #1E08207F 92%);

HEX #17081F7F to HEX #1E08207F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 6%, #1E08207F 92%);

HEX #1E08207F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #1E08207F 2%, #17081F7F 86%);

HEX #1E08207F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #1E08207F 2%, #17081F7F 92%);

HEX #17081F7F to HEX #20081C7F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 13%, #20081C7F 86%);

HEX #17081F7F to HEX #20081C7F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 9%, #20081C7F 96%);

HEX #20081C7F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #20081C7F 0%, #17081F7F 99%);

HEX #20081C7F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #20081C7F 4%, #17081F7F 94%);

2-color gradients of RGBA 23 8 31 0.5 - Darker colors

Lineal

HEX #17081F7F to HEX #180820

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 2%, #180820 94%);

Radial

HEX #17081F7F to HEX #180820

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 13%, #180820 99%);

HEX #180820 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #180820 1%, #17081F7F 96%);

HEX #180820 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #180820 8%, #17081F7F 91%);

HEX #17081F7F to HEX #301141

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 1%, #301141 95%);

HEX #17081F7F to HEX #301141

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 7%, #301141 95%);

HEX #301141 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #301141 2%, #17081F7F 89%);

HEX #301141 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #301141 0%, #17081F7F 100%);

HEX #17081F7F to HEX #491962

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 1%, #491962 95%);

HEX #17081F7F to HEX #491962

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 2%, #491962 96%);

HEX #491962 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #491962 7%, #17081F7F 86%);

HEX #491962 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #491962 4%, #17081F7F 94%);

2-color gradients of RGBA 23 8 31 0.5 - Analogue colors

Lineal

HEX #17081F7F to HEX #1208207F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 10%, #1208207F 86%);

Radial

HEX #17081F7F to HEX #1208207F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 7%, #1208207F 94%);

HEX #1208207F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #1208207F 1%, #17081F7F 98%);

HEX #1208207F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #1208207F 11%, #17081F7F 97%);

HEX #17081F7F to HEX #1808207F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 8%, #1808207F 88%);

HEX #17081F7F to HEX #1808207F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 9%, #1808207F 100%);

HEX #1808207F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #1808207F 7%, #17081F7F 98%);

HEX #1808207F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #1808207F 4%, #17081F7F 96%);

HEX #17081F7F to HEX #1E08207F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 8%, #1E08207F 91%);

HEX #17081F7F to HEX #1E08207F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 11%, #1E08207F 92%);

HEX #1E08207F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #1E08207F 5%, #17081F7F 88%);

HEX #1E08207F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #1E08207F 8%, #17081F7F 95%);

HEX #17081F7F to HEX #20081C7F

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 7%, #20081C7F 92%);

HEX #17081F7F to HEX #20081C7F

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 8%, #20081C7F 87%);

HEX #20081C7F to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #20081C7F 5%, #17081F7F 97%);

HEX #20081C7F to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #20081C7F 7%, #17081F7F 97%);

2-color gradients of RGBA 23 8 31 0.5 - Monochromatic colors

Lineal

HEX #17081F7F to HEX #180820

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 9%, #180820 89%);

Radial

HEX #17081F7F to HEX #180820

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 1%, #180820 86%);

HEX #180820 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #180820 11%, #17081F7F 86%);

HEX #180820 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #180820 11%, #17081F7F 94%);

HEX #17081F7F to HEX #301141

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 8%, #301141 90%);

HEX #17081F7F to HEX #301141

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 5%, #301141 95%);

HEX #301141 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #301141 1%, #17081F7F 88%);

HEX #301141 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #301141 12%, #17081F7F 87%);

HEX #17081F7F to HEX #491962

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 2%, #491962 94%);

HEX #17081F7F to HEX #491962

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 10%, #491962 96%);

HEX #491962 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #491962 11%, #17081F7F 96%);

HEX #491962 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #491962 14%, #17081F7F 93%);

2-color gradients of RGBA 23 8 31 0.5 - Partial complementary colors

Lineal

HEX #17081F7F to HEX #20080C

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 4%, #20080C 94%);

Radial

HEX #17081F7F to HEX #20080C

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 13%, #20080C 90%);

HEX #20080C to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #20080C 3%, #17081F7F 99%);

HEX #20080C to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #20080C 5%, #17081F7F 87%);

HEX #17081F7F to HEX #08200E

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 0%, #08200E 86%);

HEX #17081F7F to HEX #08200E

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 14%, #08200E 86%);

HEX #08200E to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #08200E 14%, #17081F7F 91%);

HEX #08200E to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #08200E 12%, #17081F7F 93%);

2-color gradients of RGBA 23 8 31 0.5 - Triadic colors

Lineal

HEX #17081F7F to HEX #201808

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 5%, #201808 98%);

Radial

HEX #17081F7F to HEX #201808

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 9%, #201808 87%);

HEX #201808 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #201808 3%, #17081F7F 90%);

HEX #201808 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #201808 0%, #17081F7F 89%);

HEX #17081F7F to HEX #082018

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 8%, #082018 93%);

HEX #17081F7F to HEX #082018

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 7%, #082018 86%);

HEX #082018 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #082018 12%, #17081F7F 92%);

HEX #082018 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #082018 3%, #17081F7F 96%);

2-color gradients of RGBA 23 8 31 0.5 - Rectangular (tetradic) colors

Lineal

HEX #17081F7F to HEX #20080C

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 4%, #20080C 96%);

Radial

HEX #17081F7F to HEX #20080C

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 10%, #20080C 99%);

HEX #20080C to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #20080C 11%, #17081F7F 97%);

HEX #20080C to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #20080C 4%, #17081F7F 88%);

HEX #17081F7F to HEX #112008

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 4%, #112008 97%);

HEX #17081F7F to HEX #112008

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 12%, #112008 87%);

HEX #112008 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #112008 4%, #17081F7F 93%);

HEX #112008 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #112008 13%, #17081F7F 100%);

HEX #17081F7F to HEX #08201D

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 10%, #08201D 89%);

HEX #17081F7F to HEX #08201D

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 0%, #08201D 98%);

HEX #08201D to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #08201D 8%, #17081F7F 94%);

HEX #08201D to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #08201D 12%, #17081F7F 92%);

2-color gradients of RGBA 23 8 31 0.5 - Square colors

Lineal

HEX #17081F7F to HEX #200C08

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 1%, #200C08 92%);

Radial

HEX #17081F7F to HEX #200C08

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 0%, #200C08 91%);

HEX #200C08 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #200C08 8%, #17081F7F 86%);

HEX #200C08 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #200C08 11%, #17081F7F 97%);

HEX #17081F7F to HEX #112008

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 7%, #112008 95%);

HEX #17081F7F to HEX #112008

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 0%, #112008 98%);

HEX #112008 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #112008 11%, #17081F7F 89%);

HEX #112008 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #112008 4%, #17081F7F 100%);

HEX #17081F7F to HEX #081D20

CSS-Code:

background-image: linear-gradient(135deg, #17081F7F 7%, #081D20 90%);

HEX #17081F7F to HEX #081D20

CSS-Code:

background-image: radial-gradient(circle, #17081F7F 7%, #081D20 99%);

HEX #081D20 to HEX #17081F7F

CSS-Code:

background-image: linear-gradient(135deg, #081D20 2%, #17081F7F 94%);

HEX #081D20 to HEX #17081F7F

CSS-Code:

background-image: radial-gradient(circle, #081D20 12%, #17081F7F 92%);

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

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)

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

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)

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)

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

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)

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

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)

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

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)

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

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)

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

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)

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

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, 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.

Public

Color palette shared
Please copy and save the desired link.

Share

View

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

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