What color is #121F15?

#121F15 is a very dark, desaturated green, closest to the named color Nightmare. It belongs to the black family of colors.

What is the RGB value of #121F15?

The RGB value is 18, 31, 21: 18 red, 31 green and 21 blue on a 0 to 255 scale.

What is the complementary color of #121F15?

The complementary color is #1F121C, found by rotating the hue 180° on the color wheel.

Is black or white text better on #121F15?

White text. Black text has a contrast ratio of 1.23:1 and white text 17.04:1. WCAG asks for at least 4.5:1 for normal text.

#121F15 color

#121F15 rgb(18, 31, 21)

Shades of black

The hex color #121F15 is a very dark, desaturated green.

In the RGB color model it is made of 7.1% red, 12.2% green and 8.2% blue (18, 31, 21).

Its hue angle is 134°, with 27% saturation and 10% lightness. For print, the CMYK equivalent is 42% cyan, 0% magenta, 32% yellow and 88% black.

The closest named color is Nightmare (#112211), a difference of 3.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 17.04:1).

#121F15 color codes

HEX	`#121F15`
RGB	`rgb(18, 31, 21)`
RGB percent	`rgb(7.1%, 12.2%, 8.2%)`
HSL	`hsl(134, 27%, 10%)`
HSV / HSB	`hsv(134, 42%, 12%)`
CMYK	`cmyk(42%, 0%, 32%, 88%)`
CIE LAB	`lab(10.28, -8.49, 5.03)`
CIE LCH	`lch(10.28, 9.87, 149.38)`
CIE XYZ	`xyz(0.875, 1.163, 0.888)`
Decimal	`1187605`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #121F15, 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 #121F15	Ratio	AA	AAA	AA large
Sample text	1.23:1	Fail	Fail	Fail
Sample text	17.04:1	Pass	Pass	Pass

#121F15 as text on	Ratio	AA	AAA	AA large
Sample text	17.04:1	Pass	Pass	Pass
Sample text	1.23:1	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 #121F15 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #121f15; }
.text { color: #121f15; }
.border { border: 2px solid #121f15; }
.transparent { background-color: rgb(18 31 21 / 50%); }
.gradient { background: linear-gradient(to right, #121f15, #121f1b); }

Background

Text color

Border

Similar colors

Closest common color name: Onyx.

Questions

What color is #121F15?: #121F15 is a very dark, desaturated green, closest to the named color Nightmare. It belongs to the black family of colors.
What is the RGB value of #121F15?: The RGB value is 18, 31, 21: 18 red, 31 green and 21 blue on a 0 to 255 scale.
What is the complementary color of #121F15?: The complementary color is #1F121C, found by rotating the hue 180° on the color wheel.
Is black or white text better on #121F15?: White text. Black text has a contrast ratio of 1.23:1 and white text 17.04:1. WCAG asks for at least 4.5:1 for normal text.