What color is #15151F?

#15151F is a very dark, grayish blue, closest to the named color Back in Black. It belongs to the black family of colors.

What is the RGB value of #15151F?

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

What is the complementary color of #15151F?

The complementary color is #1F1F15, found by rotating the hue 180° on the color wheel.

Is black or white text better on #15151F?

White text. Black text has a contrast ratio of 1.16:1 and white text 18.12:1. WCAG asks for at least 4.5:1 for normal text.

#15151F color

#15151F rgb(21, 21, 31)

Shades of black

The hex color #15151F is a very dark, grayish blue.

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

Its hue angle is 240°, with 19% saturation and 10% lightness. For print, the CMYK equivalent is 32% cyan, 32% magenta, 0% yellow and 88% black.

The closest named color is Back in Black (#16141C), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 18.12:1).

#15151F color codes

HEX	`#15151F`
RGB	`rgb(21, 21, 31)`
RGB percent	`rgb(8.2%, 8.2%, 12.2%)`
HSL	`hsl(240, 19%, 10%)`
HSV / HSB	`hsv(240, 32%, 12%)`
CMYK	`cmyk(32%, 32%, 0%, 88%)`
CIE LAB	`lab(7.18, 2.84, -6.96)`
CIE LCH	`lch(7.18, 7.52, 292.21)`
CIE XYZ	`xyz(0.825, 0.795, 1.406)`
Decimal	`1381663`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #15151F, 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 #15151F	Ratio	AA	AAA	AA large
Sample text	1.16:1	Fail	Fail	Fail
Sample text	18.12:1	Pass	Pass	Pass

#15151F as text on	Ratio	AA	AAA	AA large
Sample text	18.12:1	Pass	Pass	Pass
Sample text	1.16:1	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 #15151F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #15151f; }
.text { color: #15151f; }
.border { border: 2px solid #15151f; }
.transparent { background-color: rgb(21 21 31 / 50%); }
.gradient { background: linear-gradient(to right, #15151f, #1a151f); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Black.

Questions

What color is #15151F?: #15151F is a very dark, grayish blue, closest to the named color Back in Black. It belongs to the black family of colors.
What is the RGB value of #15151F?: The RGB value is 21, 21, 31: 21 red, 21 green and 31 blue on a 0 to 255 scale.
What is the complementary color of #15151F?: The complementary color is #1F1F15, found by rotating the hue 180° on the color wheel.
Is black or white text better on #15151F?: White text. Black text has a contrast ratio of 1.16:1 and white text 18.12:1. WCAG asks for at least 4.5:1 for normal text.