#663eb2

Royal Purple

Closest match (97% match)

Color formats

RGB

rgb(102, 62, 178)

Red, Green, Blue components

HSL

hsl(261, 48%, 47%)

Hue, Saturation, Lightness

CMYK

cmyk(43, 65, 0, 30)

Print color encoding

Luminance

0.095

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#663eb2

#8ab23e

Analogous (Adjacent)

#3e50b2

#663eb2

#a03eb2

Triadic

#663eb2

#b2663e

#3eb266

Split complementary

#663eb2

#b2a03e

#50b23e

Complete conversion table

HEX

#663EB2

RGB

rgb(102,62,178)

RGBA

rgba(102,62,178, 1)

HSL

hsl(260.69,48.33%,47.06%)

OKLCH (Modern CSS)

oklch(0.47 0.17 294.7)

CSS Variable

--color: #663eb2;

Preview

Readability and Typography

Headline Test

This text demonstrates the reading experience on this background color.

Headline Test

This text demonstrates the reading experience on this background color.

UI Component Set

This is an example alert bar using the selected color.

SOLIDSOFTOUTLINE

Product Mockup

4582 •••• •••• 9018

CARDHOLDER

JOHN DOE

VALID

12/28

Mobile application

Customer support

Hi! How can we help you today?

I love this new color! 😍

Data visualization

Weekly growth

+1,240

12.5%

WED

2,450

Contrast

Contrast and readability (WCAG)

On white background

7.25

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

2.90

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#663eb2#7172b2

ORIG

SIM

Deuteranopia (green)

#663eb2#817db2

ORIG

SIM

Tritanopia (blue)

#663eb2#644951

ORIG

SIM

Monochrome (color blind)

#663eb2#5d526c

Mixing guide

How to mix this color using physical paints or printing inks.

MIXING PALETTE

64%

26%

10%

RYB PIGMENTS

Ultramarine blue

Pigment

64%

Cadmium red

Pigment

26%

Ivory black

Pigment

10%

Unlike light, mixing paints makes colors darker. This simulation mimics the behavior of physical pigments.

Physical properties

Perceptual and light-related properties derived from the digital color.

Spectral relationship

Violet hue

380–450 nm • closest visible-spectrum range

750 nm

380 nm

Visual temperature

Cool

A perceptual warm–cool classification. Kelvin does not apply to an arbitrary interface color.

Cool

Neutral

Warm

Luminance (brightness)

9.5%

Dark • relative luminance

50%

100%

An RGB color is produced by combined screen light, so this range is a visual comparison rather than an exact physical wavelength.

Gradient gallery

Generate premium CSS backgrounds and textures from your color.

Similar & Related Colors

Mathematically computed harmonies, shades, and similar tones for this color.

Purple Emperor

#6633BB

Poppy Pompadour

#6B3FA0

Purple Rain

#7442C8

Royalty

#5930A9

Sushi

#8AB23E

Vivid Violet

#A03EB2

San Marino

#3E50B2

Brown Rust

#B2663E

Chateau Green

#3EB266

Tussock

#B2A03E

Portage

#A374EF

Deep Blue

#270878