What color is #643A8D?

#643A8D is a desaturated violet, closest to the named color Rebecca Purple. It belongs to the purple family of colors.

What is the RGB value of #643A8D?

The RGB value is 100, 58, 141: 100 red, 58 green and 141 blue on a 0 to 255 scale.

What is the complementary color of #643A8D?

The complementary color is #638D3A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #643A8D?

White text. Black text has a contrast ratio of 2.53:1 and white text 8.29:1. WCAG asks for at least 4.5:1 for normal text.

#643A8D color

#643A8D rgb(100, 58, 141)

Shades of purple

The hex color #643A8D is a desaturated violet.

In the RGB color model it is made of 39.2% red, 22.7% green and 55.3% blue (100, 58, 141).

Its hue angle is 270°, with 42% saturation and 39% lightness. For print, the CMYK equivalent is 29% cyan, 59% magenta, 0% yellow and 45% black.

The closest named color is Rebecca Purple (#663399), a difference of 3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 8.29:1).

#643A8D color codes

HEX	`#643A8D`
RGB	`rgb(100, 58, 141)`
RGB percent	`rgb(39.2%, 22.7%, 55.3%)`
HSL	`hsl(270, 42%, 39%)`
HSV / HSB	`hsv(270, 59%, 55%)`
CMYK	`cmyk(29%, 59%, 0%, 45%)`
CIE LAB	`lab(33.26, 35.5, -39.25)`
CIE LCH	`lch(33.26, 52.92, 312.13)`
CIE XYZ	`xyz(11.575, 7.659, 26.063)`
Decimal	`6568589`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #643A8D, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #643A8D	Ratio	AA	AAA	AA large
Sample text	2.53:1	Fail	Fail	Fail
Sample text	8.29:1	Pass	Pass	Pass

#643A8D as text on	Ratio	AA	AAA	AA large
Sample text	8.29:1	Pass	Pass	Pass
Sample text	2.53:1	Fail	Fail	Fail

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #643A8D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #643a8d; }
.text { color: #643a8d; }
.border { border: 2px solid #643a8d; }
.transparent { background-color: rgb(100 58 141 / 50%); }
.gradient { background: linear-gradient(to right, #643a8d, #8d3a8d); }

Background

Text color

Border

Similar colors

Questions

What color is #643A8D?: #643A8D is a desaturated violet, closest to the named color Rebecca Purple. It belongs to the purple family of colors.
What is the RGB value of #643A8D?: The RGB value is 100, 58, 141: 100 red, 58 green and 141 blue on a 0 to 255 scale.
What is the complementary color of #643A8D?: The complementary color is #638D3A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #643A8D?: White text. Black text has a contrast ratio of 2.53:1 and white text 8.29:1. WCAG asks for at least 4.5:1 for normal text.