What color is #171F18?

#171F18 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 #171F18?

The RGB value is 23, 31, 24: 23 red, 31 green and 24 blue on a 0 to 255 scale.

What is the complementary color of #171F18?

The complementary color is #1F171E, found by rotating the hue 180° on the color wheel.

Is black or white text better on #171F18?

White text. Black text has a contrast ratio of 1.25:1 and white text 16.86:1. WCAG asks for at least 4.5:1 for normal text.

#171F18 color

#171F18 rgb(23, 31, 24)

Shades of black

The hex color #171F18 is a very dark, grayish green.

In the RGB color model it is made of 9% red, 12.2% green and 9.4% blue (23, 31, 24).

Its hue angle is 128°, with 15% saturation and 11% lightness. For print, the CMYK equivalent is 26% cyan, 0% magenta, 23% yellow and 88% black.

The closest named color is Underworld (#1E231C), a difference of 2.3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 16.86:1).

#171F18 color codes

HEX	`#171F18`
RGB	`rgb(23, 31, 24)`
RGB percent	`rgb(9%, 12.2%, 9.4%)`
HSL	`hsl(128, 15%, 11%)`
HSV / HSB	`hsv(128, 26%, 12%)`
CMYK	`cmyk(26%, 0%, 23%, 88%)`
CIE LAB	`lab(10.76, -5.5, 3.6)`
CIE LCH	`lch(10.76, 6.57, 146.78)`
CIE XYZ	`xyz(1.008, 1.228, 1.048)`
Decimal	`1515288`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #171F18, 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 #171F18	Ratio	AA	AAA	AA large
Sample text	1.25:1	Fail	Fail	Fail
Sample text	16.86:1	Pass	Pass	Pass

#171F18 as text on	Ratio	AA	AAA	AA large
Sample text	16.86:1	Pass	Pass	Pass
Sample text	1.25:1	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 #171F18 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #171f18; }
.text { color: #171f18; }
.border { border: 2px solid #171f18; }
.transparent { background-color: rgb(23 31 24 / 50%); }
.gradient { background: linear-gradient(to right, #171f18, #171f1c); }

Background

Text color

Border

Similar colors

Closest common color name: Off Black.

Questions

What color is #171F18?: #171F18 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 #171F18?: The RGB value is 23, 31, 24: 23 red, 31 green and 24 blue on a 0 to 255 scale.
What is the complementary color of #171F18?: The complementary color is #1F171E, found by rotating the hue 180° on the color wheel.
Is black or white text better on #171F18?: White text. Black text has a contrast ratio of 1.25:1 and white text 16.86:1. WCAG asks for at least 4.5:1 for normal text.