What color is #663A33?

#663A33 is a dark, desaturated red, closest to the named color Single Origin. It belongs to the brown family of colors.

What is the RGB value of #663A33?

The RGB value is 102, 58, 51: 102 red, 58 green and 51 blue on a 0 to 255 scale.

What is the complementary color of #663A33?

The complementary color is #335F66, found by rotating the hue 180° on the color wheel.

Is black or white text better on #663A33?

White text. Black text has a contrast ratio of 2.22:1 and white text 9.47:1. WCAG asks for at least 4.5:1 for normal text.

#663A33 color

#663A33 rgb(102, 58, 51)

Shades of brown

The hex color #663A33 is a dark, desaturated red.

In the RGB color model it is made of 40% red, 22.7% green and 20% blue (102, 58, 51).

Its hue angle is 8°, with 33% saturation and 30% lightness. For print, the CMYK equivalent is 0% cyan, 43% magenta, 50% yellow and 60% black.

The closest named color is Single Origin (#713E39), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 9.47:1).

#663A33 color codes

HEX	`#663A33`
RGB	`rgb(102, 58, 51)`
RGB percent	`rgb(40%, 22.7%, 20%)`
HSL	`hsl(8, 33%, 30%)`
HSV / HSB	`hsv(8, 50%, 40%)`
CMYK	`cmyk(0%, 43%, 50%, 60%)`
CIE LAB	`lab(29.64, 18.59, 12.72)`
CIE LCH	`lch(29.64, 22.53, 34.38)`
CIE XYZ	`xyz(7.591, 6.091, 3.907)`
Decimal	`6699571`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #663A33, 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 #663A33	Ratio	AA	AAA	AA large
Sample text	2.22:1	Fail	Fail	Fail
Sample text	9.47:1	Pass	Pass	Pass

#663A33 as text on	Ratio	AA	AAA	AA large
Sample text	9.47:1	Pass	Pass	Pass
Sample text	2.22:1	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 #663A33 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #663a33; }
.text { color: #663a33; }
.border { border: 2px solid #663a33; }
.transparent { background-color: rgb(102 58 51 / 50%); }
.gradient { background: linear-gradient(to right, #663a33, #665433); }

Background

Text color

Border

Similar colors

Closest common color name: Espresso.

Questions

What color is #663A33?: #663A33 is a dark, desaturated red, closest to the named color Single Origin. It belongs to the brown family of colors.
What is the RGB value of #663A33?: The RGB value is 102, 58, 51: 102 red, 58 green and 51 blue on a 0 to 255 scale.
What is the complementary color of #663A33?: The complementary color is #335F66, found by rotating the hue 180° on the color wheel.
Is black or white text better on #663A33?: White text. Black text has a contrast ratio of 2.22:1 and white text 9.47:1. WCAG asks for at least 4.5:1 for normal text.