What color is #644D51?

#644D51 is a dark, grayish red, closest to the named color Dark Chocolate. It belongs to the gray family of colors.

What is the RGB value of #644D51?

The RGB value is 100, 77, 81: 100 red, 77 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #644D51?

The complementary color is #4D6460, found by rotating the hue 180° on the color wheel.

Is black or white text better on #644D51?

White text. Black text has a contrast ratio of 2.72:1 and white text 7.71:1. WCAG asks for at least 4.5:1 for normal text.

#644D51 color

#644D51 rgb(100, 77, 81)

Shades of gray

The hex color #644D51 is a dark, grayish red.

In the RGB color model it is made of 39.2% red, 30.2% green and 31.8% blue (100, 77, 81).

Its hue angle is 350°, with 13% saturation and 35% lightness. For print, the CMYK equivalent is 0% cyan, 23% magenta, 19% yellow and 61% black.

The closest named color is Dark Chocolate (#624A49), a difference of 2.8 ΔE, a small difference.

White text is the more readable choice on this background (contrast 7.71:1).

#644D51 color codes

HEX	`#644D51`
RGB	`rgb(100, 77, 81)`
RGB percent	`rgb(39.2%, 30.2%, 31.8%)`
HSL	`hsl(350, 13%, 35%)`
HSV / HSB	`hsv(350, 23%, 39%)`
CMYK	`cmyk(0%, 23%, 19%, 61%)`
CIE LAB	`lab(35.23, 10.38, 1.36)`
CIE LCH	`lch(35.23, 10.47, 7.46)`
CIE XYZ	`xyz(9.395, 8.612, 8.95)`
Decimal	`6573393`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #644D51, 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 #644D51	Ratio	AA	AAA	AA large
Sample text	2.72:1	Fail	Fail	Fail
Sample text	7.71:1	Pass	Pass	Pass

#644D51 as text on	Ratio	AA	AAA	AA large
Sample text	7.71:1	Pass	Pass	Pass
Sample text	2.72:1	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 #644D51 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #644d51; }
.text { color: #644d51; }
.border { border: 2px solid #644d51; }
.transparent { background-color: rgb(100 77 81 / 50%); }
.gradient { background: linear-gradient(to right, #644d51, #64554d); }

Background

Text color

Border

Similar colors

Closest common color name: Eggplant.

Questions

What color is #644D51?: #644D51 is a dark, grayish red, closest to the named color Dark Chocolate. It belongs to the gray family of colors.
What is the RGB value of #644D51?: The RGB value is 100, 77, 81: 100 red, 77 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #644D51?: The complementary color is #4D6460, found by rotating the hue 180° on the color wheel.
Is black or white text better on #644D51?: White text. Black text has a contrast ratio of 2.72:1 and white text 7.71:1. WCAG asks for at least 4.5:1 for normal text.