What color is #643F57?

#643F57 is a dark, grayish rose, closest to the named color Grape Fizz. It belongs to the purple family of colors.

What is the RGB value of #643F57?

The RGB value is 100, 63, 87: 100 red, 63 green and 87 blue on a 0 to 255 scale.

What is the complementary color of #643F57?

The complementary color is #3F644C, found by rotating the hue 180° on the color wheel.

Is black or white text better on #643F57?

White text. Black text has a contrast ratio of 2.39:1 and white text 8.78:1. WCAG asks for at least 4.5:1 for normal text.

#643F57 color

#643F57 rgb(100, 63, 87)

Shades of purple

The hex color #643F57 is a dark, grayish rose.

In the RGB color model it is made of 39.2% red, 24.7% green and 34.1% blue (100, 63, 87).

Its hue angle is 321°, with 23% saturation and 32% lightness. For print, the CMYK equivalent is 0% cyan, 37% magenta, 13% yellow and 61% black.

The closest named color is Grape Fizz (#64435F), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 8.78:1).

#643F57 color codes

HEX	`#643F57`
RGB	`rgb(100, 63, 87)`
RGB percent	`rgb(39.2%, 24.7%, 34.1%)`
HSL	`hsl(321, 23%, 32%)`
HSV / HSB	`hsv(321, 37%, 39%)`
CMYK	`cmyk(0%, 37%, 13%, 61%)`
CIE LAB	`lab(31.7, 20.19, -7.68)`
CIE LCH	`lch(31.7, 21.61, 339.18)`
CIE XYZ	`xyz(8.753, 6.953, 9.896)`
Decimal	`6569815`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #643F57, 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 #643F57	Ratio	AA	AAA	AA large
Sample text	2.39:1	Fail	Fail	Fail
Sample text	8.78:1	Pass	Pass	Pass

#643F57 as text on	Ratio	AA	AAA	AA large
Sample text	8.78:1	Pass	Pass	Pass
Sample text	2.39:1	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 #643F57 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #643f57; }
.text { color: #643f57; }
.border { border: 2px solid #643f57; }
.transparent { background-color: rgb(100 63 87 / 50%); }
.gradient { background: linear-gradient(to right, #643f57, #643f45); }

Background

Text color

Border

Similar colors

Questions

What color is #643F57?: #643F57 is a dark, grayish rose, closest to the named color Grape Fizz. It belongs to the purple family of colors.
What is the RGB value of #643F57?: The RGB value is 100, 63, 87: 100 red, 63 green and 87 blue on a 0 to 255 scale.
What is the complementary color of #643F57?: The complementary color is #3F644C, found by rotating the hue 180° on the color wheel.
Is black or white text better on #643F57?: White text. Black text has a contrast ratio of 2.39:1 and white text 8.78:1. WCAG asks for at least 4.5:1 for normal text.