What color is #664F4F?

#664F4F 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 #664F4F?

The RGB value is 102, 79, 79: 102 red, 79 green and 79 blue on a 0 to 255 scale.

What is the complementary color of #664F4F?

The complementary color is #4F6666, found by rotating the hue 180° on the color wheel.

Is black or white text better on #664F4F?

White text. Black text has a contrast ratio of 2.8:1 and white text 7.51:1. WCAG asks for at least 4.5:1 for normal text.

#664F4F color

#664F4F rgb(102, 79, 79)

Shades of gray

The hex color #664F4F is a dark, grayish red.

In the RGB color model it is made of 40% red, 31% green and 31% blue (102, 79, 79).

Its hue angle is 0°, with 13% saturation and 35% lightness. For print, the CMYK equivalent is 0% cyan, 23% magenta, 23% yellow and 60% black.

The closest named color is Dark Chocolate (#624A49), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 7.51:1).

#664F4F color codes

HEX	`#664F4F`
RGB	`rgb(102, 79, 79)`
RGB percent	`rgb(40%, 31%, 31%)`
HSL	`hsl(0, 13%, 35%)`
HSV / HSB	`hsv(0, 23%, 40%)`
CMYK	`cmyk(0%, 23%, 23%, 60%)`
CIE LAB	`lab(35.95, 9.63, 3.69)`
CIE LCH	`lch(35.95, 10.32, 20.97)`
CIE XYZ	`xyz(9.687, 8.982, 8.619)`
Decimal	`6704975`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #664F4F, 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 #664F4F	Ratio	AA	AAA	AA large
Sample text	2.8:1	Fail	Fail	Fail
Sample text	7.51:1	Pass	Pass	Pass

#664F4F as text on	Ratio	AA	AAA	AA large
Sample text	7.51:1	Pass	Pass	Pass
Sample text	2.8:1	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 #664F4F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #664f4f; }
.text { color: #664f4f; }
.border { border: 2px solid #664f4f; }
.transparent { background-color: rgb(102 79 79 / 50%); }
.gradient { background: linear-gradient(to right, #664f4f, #665b4f); }

Background

Text color

Border

Similar colors

Closest common color name: Umber.

Questions

What color is #664F4F?: #664F4F 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 #664F4F?: The RGB value is 102, 79, 79: 102 red, 79 green and 79 blue on a 0 to 255 scale.
What is the complementary color of #664F4F?: The complementary color is #4F6666, found by rotating the hue 180° on the color wheel.
Is black or white text better on #664F4F?: White text. Black text has a contrast ratio of 2.8:1 and white text 7.51:1. WCAG asks for at least 4.5:1 for normal text.