What color is #151728?

#151728 is a very dark, desaturated blue, closest to the named color Corbeau. It belongs to the black family of colors.

What is the RGB value of #151728?

The RGB value is 21, 23, 40: 21 red, 23 green and 40 blue on a 0 to 255 scale.

What is the complementary color of #151728?

The complementary color is #282615, found by rotating the hue 180° on the color wheel.

Is black or white text better on #151728?

White text. Black text has a contrast ratio of 1.19:1 and white text 17.72:1. WCAG asks for at least 4.5:1 for normal text.

#151728 color

#151728 rgb(21, 23, 40)

Shades of black

The hex color #151728 is a very dark, desaturated blue.

In the RGB color model it is made of 8.2% red, 9% green and 15.7% blue (21, 23, 40).

Its hue angle is 234°, with 31% saturation and 12% lightness. For print, the CMYK equivalent is 47% cyan, 42% magenta, 0% yellow and 84% black.

The closest named color is Corbeau (#111122), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 17.72:1).

#151728 color codes

HEX	`#151728`
RGB	`rgb(21, 23, 40)`
RGB percent	`rgb(8.2%, 9%, 15.7%)`
HSL	`hsl(234, 31%, 12%)`
HSV / HSB	`hsv(234, 48%, 16%)`
CMYK	`cmyk(47%, 42%, 0%, 84%)`
CIE LAB	`lab(8.35, 4.54, -11.93)`
CIE LCH	`lch(8.35, 12.76, 290.82)`
CIE XYZ	`xyz(0.999, 0.925, 2.133)`
Decimal	`1382184`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #151728, 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 #151728	Ratio	AA	AAA	AA large
Sample text	1.19:1	Fail	Fail	Fail
Sample text	17.72:1	Pass	Pass	Pass

#151728 as text on	Ratio	AA	AAA	AA large
Sample text	17.72:1	Pass	Pass	Pass
Sample text	1.19:1	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 #151728 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #151728; }
.text { color: #151728; }
.border { border: 2px solid #151728; }
.transparent { background-color: rgb(21 23 40 / 50%); }
.gradient { background: linear-gradient(to right, #151728, #1d1528); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Black.

Questions

What color is #151728?: #151728 is a very dark, desaturated blue, closest to the named color Corbeau. It belongs to the black family of colors.
What is the RGB value of #151728?: The RGB value is 21, 23, 40: 21 red, 23 green and 40 blue on a 0 to 255 scale.
What is the complementary color of #151728?: The complementary color is #282615, found by rotating the hue 180° on the color wheel.
Is black or white text better on #151728?: White text. Black text has a contrast ratio of 1.19:1 and white text 17.72:1. WCAG asks for at least 4.5:1 for normal text.