#643d7c

Affair

Closest match (95% match)

Color formats

RGB

rgb(100, 61, 124)

Red, Green, Blue components

HSL

hsl(277, 34%, 36%)

Hue, Saturation, Lightness

CMYK

cmyk(19, 51, 0, 51)

Print color encoding

Luminance

0.075

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#643d7c

#557c3d

Analogous (Adjacent)

#443d7c

#643d7c

#7c3d75

Triadic

#643d7c

#7c643d

#3d7c64

Split complementary

#643d7c

#757c3d

#3d7c44

Complete conversion table

HEX

#643D7C

RGB

rgb(100,61,124)

RGBA

rgba(100,61,124, 1)

HSL

hsl(277.14,34.05%,36.27%)

OKLCH (Modern CSS)

oklch(0.43 0.11 311.2)

CSS Variable

--color: #643d7c;

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%

1D

1W

1M

WED

2,450

Contrast

Contrast and readability (WCAG)

On white background

8.40

AP

Small text (14pt)

The quick brown fox jumps over...

AA

AAA

Large text or UI (18pt Bold)

AA

AAA

On black background

2.50

AP

Small text (14pt)

The quick brown fox jumps over...

AA

AAA

Large text or UI (18pt Bold)

AA

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#643d7c#59597c

ORIG

SIM

Deuteranopia (green)

#643d7c#6c6b7c

ORIG

SIM

Tritanopia (blue)

#643d7c#62484f

ORIG

SIM

Monochrome (color blind)

#643d7c#4d4d4d

Mixing guide

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

MIXING PALETTE

46%

29%

26%

RYB PIGMENTS

Ivory black

Pigment

46%

Ultramarine blue

Pigment

29%

Cadmium red

Pigment

26%

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)

7.5%

Dark • relative luminance

0%

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.

Heartless

#623B70

Lords of the Night

#664488

Galactic Grapevine

#6B327B

In the Vines

#5C457B

Fern Green

#557C3D

Cosmic

#7C3D75

East Bay

#443D7C

Yellow Metal

#7C643D

Viridian

#3D7C64

Yellow Metal

#757C3D

Wisteria

#9D72B5

Violet

#2F0B47


Top tools

WorkspaceLinksySEO AnalyzerChromoQR Code Generator

ReadyTools

CareersContactTools
Pricing7 days free
SupportSecurityGuidesDocsBlogUpdatesLaraVault

Select Language

Set theme

ReadyTools

© 2026 ReadyTools. All rights reserved.