What color is #231B1B?

#231B1B is a very dark, grayish red, closest to the named color Dark Orchestra. It belongs to the black family of colors.

What is the RGB value of #231B1B?

The RGB value is 35, 27, 27: 35 red, 27 green and 27 blue on a 0 to 255 scale.

What is the complementary color of #231B1B?

The complementary color is #1B2323, found by rotating the hue 180° on the color wheel.

Is black or white text better on #231B1B?

White text. Black text has a contrast ratio of 1.24:1 and white text 16.88:1. WCAG asks for at least 4.5:1 for normal text.

#231B1B color

#231B1B rgb(35, 27, 27)

Shades of black

The hex color #231B1B is a very dark, grayish red.

In the RGB color model it is made of 13.7% red, 10.6% green and 10.6% blue (35, 27, 27).

Its hue angle is 0°, with 13% saturation and 12% lightness. For print, the CMYK equivalent is 0% cyan, 23% magenta, 23% yellow and 86% black.

The closest named color is Dark Orchestra (#251B19), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 16.88:1).

#231B1B color codes

HEX	`#231B1B`
RGB	`rgb(35, 27, 27)`
RGB percent	`rgb(13.7%, 10.6%, 10.6%)`
HSL	`hsl(0, 13%, 12%)`
HSV / HSB	`hsv(0, 23%, 14%)`
CMYK	`cmyk(0%, 23%, 23%, 86%)`
CIE LAB	`lab(10.71, 3.93, 1.48)`
CIE LCH	`lch(10.71, 4.2, 20.63)`
CIE XYZ	`xyz(1.283, 1.22, 1.205)`
Decimal	`2300699`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #231B1B, 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 #231B1B	Ratio	AA	AAA	AA large
Sample text	1.24:1	Fail	Fail	Fail
Sample text	16.88:1	Pass	Pass	Pass

#231B1B as text on	Ratio	AA	AAA	AA large
Sample text	16.88:1	Pass	Pass	Pass
Sample text	1.24:1	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 #231B1B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #231b1b; }
.text { color: #231b1b; }
.border { border: 2px solid #231b1b; }
.transparent { background-color: rgb(35 27 27 / 50%); }
.gradient { background: linear-gradient(to right, #231b1b, #231f1b); }

Background

Text color

Border

Similar colors

Questions

What color is #231B1B?: #231B1B is a very dark, grayish red, closest to the named color Dark Orchestra. It belongs to the black family of colors.
What is the RGB value of #231B1B?: The RGB value is 35, 27, 27: 35 red, 27 green and 27 blue on a 0 to 255 scale.
What is the complementary color of #231B1B?: The complementary color is #1B2323, found by rotating the hue 180° on the color wheel.
Is black or white text better on #231B1B?: White text. Black text has a contrast ratio of 1.24:1 and white text 16.88:1. WCAG asks for at least 4.5:1 for normal text.