What color is #151E3B?

#151E3B is a very dark, desaturated blue, closest to the named color Nightwalker. It belongs to the black family of colors.

What is the RGB value of #151E3B?

The RGB value is 21, 30, 59: 21 red, 30 green and 59 blue on a 0 to 255 scale.

What is the complementary color of #151E3B?

The complementary color is #3B3215, found by rotating the hue 180° on the color wheel.

Is black or white text better on #151E3B?

White text. Black text has a contrast ratio of 1.28:1 and white text 16.4:1. WCAG asks for at least 4.5:1 for normal text.

#151E3B color

#151E3B rgb(21, 30, 59)

Shades of black

The hex color #151E3B is a very dark, desaturated blue.

In the RGB color model it is made of 8.2% red, 11.8% green and 23.1% blue (21, 30, 59).

Its hue angle is 226°, with 48% saturation and 16% lightness. For print, the CMYK equivalent is 64% cyan, 49% magenta, 0% yellow and 77% black.

The closest named color is Nightwalker (#161D3B), a difference of 0.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 16.4:1).

#151E3B color codes

HEX	`#151E3B`
RGB	`rgb(21, 30, 59)`
RGB percent	`rgb(8.2%, 11.8%, 23.1%)`
HSL	`hsl(226, 48%, 16%)`
HSV / HSB	`hsv(226, 64%, 23%)`
CMYK	`cmyk(64%, 49%, 0%, 77%)`
CIE LAB	`lab(11.98, 6.53, -20)`
CIE LCH	`lch(11.98, 21.04, 288.08)`
CIE XYZ	`xyz(1.563, 1.404, 4.325)`
Decimal	`1383995`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #151E3B, 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 #151E3B	Ratio	AA	AAA	AA large
Sample text	1.28:1	Fail	Fail	Fail
Sample text	16.4:1	Pass	Pass	Pass

#151E3B as text on	Ratio	AA	AAA	AA large
Sample text	16.4:1	Pass	Pass	Pass
Sample text	1.28:1	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 #151E3B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #151e3b; }
.text { color: #151e3b; }
.border { border: 2px solid #151e3b; }
.transparent { background-color: rgb(21 30 59 / 50%); }
.gradient { background: linear-gradient(to right, #151e3b, #1f153b); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #151E3B?: #151E3B is a very dark, desaturated blue, closest to the named color Nightwalker. It belongs to the black family of colors.
What is the RGB value of #151E3B?: The RGB value is 21, 30, 59: 21 red, 30 green and 59 blue on a 0 to 255 scale.
What is the complementary color of #151E3B?: The complementary color is #3B3215, found by rotating the hue 180° on the color wheel.
Is black or white text better on #151E3B?: White text. Black text has a contrast ratio of 1.28:1 and white text 16.4:1. WCAG asks for at least 4.5:1 for normal text.