What color is #1F291B?

#1F291B is a very dark, grayish green, closest to the named color Nightmare. It belongs to the black family of colors.

What is the RGB value of #1F291B?

The RGB value is 31, 41, 27: 31 red, 41 green and 27 blue on a 0 to 255 scale.

What is the complementary color of #1F291B?

The complementary color is #251B29, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1F291B?

White text. Black text has a contrast ratio of 1.39:1 and white text 15.09:1. WCAG asks for at least 4.5:1 for normal text.

#1F291B color

#1F291B rgb(31, 41, 27)

Shades of black

The hex color #1F291B is a very dark, grayish green.

In the RGB color model it is made of 12.2% red, 16.1% green and 10.6% blue (31, 41, 27).

Its hue angle is 103°, with 21% saturation and 13% lightness. For print, the CMYK equivalent is 24% cyan, 0% magenta, 34% yellow and 84% black.

The closest named color is Nightmare (#112211), a difference of 4.3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 15.09:1).

#1F291B color codes

HEX	`#1F291B`
RGB	`rgb(31, 41, 27)`
RGB percent	`rgb(12.2%, 16.1%, 10.6%)`
HSL	`hsl(103, 21%, 13%)`
HSV / HSB	`hsv(103, 34%, 16%)`
CMYK	`cmyk(24%, 0%, 34%, 84%)`
CIE LAB	`lab(15.26, -7.77, 7.8)`
CIE LCH	`lch(15.26, 11.01, 134.89)`
CIE XYZ	`xyz(1.556, 1.956, 1.332)`
Decimal	`2042139`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1F291B, 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 #1F291B	Ratio	AA	AAA	AA large
Sample text	1.39:1	Fail	Fail	Fail
Sample text	15.09:1	Pass	Pass	Pass

#1F291B as text on	Ratio	AA	AAA	AA large
Sample text	15.09:1	Pass	Pass	Pass
Sample text	1.39:1	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 #1F291B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1f291b; }
.text { color: #1f291b; }
.border { border: 2px solid #1f291b; }
.transparent { background-color: rgb(31 41 27 / 50%); }
.gradient { background: linear-gradient(to right, #1f291b, #1b291e); }

Background

Text color

Border

Similar colors

Closest common color name: Onyx.

Questions

What color is #1F291B?: #1F291B is a very dark, grayish green, closest to the named color Nightmare. It belongs to the black family of colors.
What is the RGB value of #1F291B?: The RGB value is 31, 41, 27: 31 red, 41 green and 27 blue on a 0 to 255 scale.
What is the complementary color of #1F291B?: The complementary color is #251B29, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1F291B?: White text. Black text has a contrast ratio of 1.39:1 and white text 15.09:1. WCAG asks for at least 4.5:1 for normal text.