What color is #15231C?

#15231C is a very dark, desaturated spring green, closest to the named color Swamp Thing. It belongs to the black family of colors.

What is the RGB value of #15231C?

The RGB value is 21, 35, 28: 21 red, 35 green and 28 blue on a 0 to 255 scale.

What is the complementary color of #15231C?

The complementary color is #23151C, found by rotating the hue 180° on the color wheel.

Is black or white text better on #15231C?

White text. Black text has a contrast ratio of 1.29:1 and white text 16.29:1. WCAG asks for at least 4.5:1 for normal text.

#15231C color

#15231C rgb(21, 35, 28)

Shades of black

The hex color #15231C is a very dark, desaturated spring green.

In the RGB color model it is made of 8.2% red, 13.7% green and 11% blue (21, 35, 28).

Its hue angle is 150°, with 25% saturation and 11% lightness. For print, the CMYK equivalent is 40% cyan, 0% magenta, 20% yellow and 86% black.

The closest named color is Swamp Thing (#162825), a difference of 3.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 16.29:1).

#15231C color codes

HEX	`#15231C`
RGB	`rgb(21, 35, 28)`
RGB percent	`rgb(8.2%, 13.7%, 11%)`
HSL	`hsl(150, 25%, 11%)`
HSV / HSB	`hsv(150, 40%, 14%)`
CMYK	`cmyk(40%, 0%, 20%, 86%)`
CIE LAB	`lab(12.26, -8.02, 2.79)`
CIE LCH	`lch(12.26, 8.49, 160.81)`
CIE XYZ	`xyz(1.12, 1.445, 1.318)`
Decimal	`1385244`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #15231C, 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 #15231C	Ratio	AA	AAA	AA large
Sample text	1.29:1	Fail	Fail	Fail
Sample text	16.29:1	Pass	Pass	Pass

#15231C as text on	Ratio	AA	AAA	AA large
Sample text	16.29:1	Pass	Pass	Pass
Sample text	1.29:1	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 #15231C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #15231c; }
.text { color: #15231c; }
.border { border: 2px solid #15231c; }
.transparent { background-color: rgb(21 35 28 / 50%); }
.gradient { background: linear-gradient(to right, #15231c, #152323); }

Background

Text color

Border

Similar colors

Closest common color name: Onyx.

Questions

What color is #15231C?: #15231C is a very dark, desaturated spring green, closest to the named color Swamp Thing. It belongs to the black family of colors.
What is the RGB value of #15231C?: The RGB value is 21, 35, 28: 21 red, 35 green and 28 blue on a 0 to 255 scale.
What is the complementary color of #15231C?: The complementary color is #23151C, found by rotating the hue 180° on the color wheel.
Is black or white text better on #15231C?: White text. Black text has a contrast ratio of 1.29:1 and white text 16.29:1. WCAG asks for at least 4.5:1 for normal text.