What color is #171B2A?

#171B2A is a very dark, desaturated blue, closest to the named color Eclipse Elixir. It belongs to the black family of colors.

What is the RGB value of #171B2A?

The RGB value is 23, 27, 42: 23 red, 27 green and 42 blue on a 0 to 255 scale.

What is the complementary color of #171B2A?

The complementary color is #2A2617, found by rotating the hue 180° on the color wheel.

Is black or white text better on #171B2A?

White text. Black text has a contrast ratio of 1.23:1 and white text 17.12:1. WCAG asks for at least 4.5:1 for normal text.

#171B2A color

#171B2A rgb(23, 27, 42)

Shades of black

The hex color #171B2A is a very dark, desaturated blue.

In the RGB color model it is made of 9% red, 10.6% green and 16.5% blue (23, 27, 42).

Its hue angle is 227°, with 29% saturation and 13% lightness. For print, the CMYK equivalent is 45% cyan, 36% magenta, 0% yellow and 84% black.

The closest named color is Eclipse Elixir (#1F2133), a difference of 2.8 ΔE, a small difference.

White text is the more readable choice on this background (contrast 17.12:1).

#171B2A color codes

HEX	`#171B2A`
RGB	`rgb(23, 27, 42)`
RGB percent	`rgb(9%, 10.6%, 16.5%)`
HSL	`hsl(227, 29%, 13%)`
HSV / HSB	`hsv(227, 45%, 16%)`
CMYK	`cmyk(45%, 36%, 0%, 84%)`
CIE LAB	`lab(10.05, 2.91, -10.74)`
CIE LCH	`lch(10.05, 11.13, 285.18)`
CIE XYZ	`xyz(1.163, 1.133, 2.347)`
Decimal	`1514282`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #171B2A, 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 #171B2A	Ratio	AA	AAA	AA large
Sample text	1.23:1	Fail	Fail	Fail
Sample text	17.12:1	Pass	Pass	Pass

#171B2A as text on	Ratio	AA	AAA	AA large
Sample text	17.12:1	Pass	Pass	Pass
Sample text	1.23:1	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 #171B2A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #171b2a; }
.text { color: #171b2a; }
.border { border: 2px solid #171b2a; }
.transparent { background-color: rgb(23 27 42 / 50%); }
.gradient { background: linear-gradient(to right, #171b2a, #1c172a); }

Background

Text color

Border

Similar colors

Closest common color name: Rich Black.

Questions

What color is #171B2A?: #171B2A is a very dark, desaturated blue, closest to the named color Eclipse Elixir. It belongs to the black family of colors.
What is the RGB value of #171B2A?: The RGB value is 23, 27, 42: 23 red, 27 green and 42 blue on a 0 to 255 scale.
What is the complementary color of #171B2A?: The complementary color is #2A2617, found by rotating the hue 180° on the color wheel.
Is black or white text better on #171B2A?: White text. Black text has a contrast ratio of 1.23:1 and white text 17.12:1. WCAG asks for at least 4.5:1 for normal text.