What color is #1B251F?

#1B251F is a very dark, grayish green, closest to the named color Underworld. It belongs to the black family of colors.

What is the RGB value of #1B251F?

The RGB value is 27, 37, 31: 27 red, 37 green and 31 blue on a 0 to 255 scale.

What is the complementary color of #1B251F?

The complementary color is #251B21, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B251F?

White text. Black text has a contrast ratio of 1.33:1 and white text 15.78:1. WCAG asks for at least 4.5:1 for normal text.

#1B251F color

#1B251F rgb(27, 37, 31)

Shades of black

The hex color #1B251F is a very dark, grayish green.

In the RGB color model it is made of 10.6% red, 14.5% green and 12.2% blue (27, 37, 31).

Its hue angle is 144°, with 16% saturation and 13% lightness. For print, the CMYK equivalent is 27% cyan, 0% magenta, 16% yellow and 85% black.

The closest named color is Underworld (#1E231C), a difference of 2.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 15.78:1).

#1B251F color codes

HEX	`#1B251F`
RGB	`rgb(27, 37, 31)`
RGB percent	`rgb(10.6%, 14.5%, 12.2%)`
HSL	`hsl(144, 16%, 13%)`
HSV / HSB	`hsv(144, 27%, 15%)`
CMYK	`cmyk(27%, 0%, 16%, 85%)`
CIE LAB	`lab(13.56, -6.01, 2.56)`
CIE LCH	`lch(13.56, 6.53, 156.92)`
CIE XYZ	`xyz(1.361, 1.655, 1.544)`
Decimal	`1778975`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B251F, 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 #1B251F	Ratio	AA	AAA	AA large
Sample text	1.33:1	Fail	Fail	Fail
Sample text	15.78:1	Pass	Pass	Pass

#1B251F as text on	Ratio	AA	AAA	AA large
Sample text	15.78:1	Pass	Pass	Pass
Sample text	1.33:1	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 #1B251F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b251f; }
.text { color: #1b251f; }
.border { border: 2px solid #1b251f; }
.transparent { background-color: rgb(27 37 31 / 50%); }
.gradient { background: linear-gradient(to right, #1b251f, #1b2524); }

Background

Text color

Border

Similar colors

Closest common color name: Onyx.

Questions

What color is #1B251F?: #1B251F is a very dark, grayish green, closest to the named color Underworld. It belongs to the black family of colors.
What is the RGB value of #1B251F?: The RGB value is 27, 37, 31: 27 red, 37 green and 31 blue on a 0 to 255 scale.
What is the complementary color of #1B251F?: The complementary color is #251B21, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B251F?: White text. Black text has a contrast ratio of 1.33:1 and white text 15.78:1. WCAG asks for at least 4.5:1 for normal text.