What color is #172F21?

#172F21 is a very dark, desaturated green, closest to the named color Nightmare. It belongs to the green family of colors.

What is the RGB value of #172F21?

The RGB value is 23, 47, 33: 23 red, 47 green and 33 blue on a 0 to 255 scale.

What is the complementary color of #172F21?

The complementary color is #2F1725, found by rotating the hue 180° on the color wheel.

Is black or white text better on #172F21?

White text. Black text has a contrast ratio of 1.46:1 and white text 14.33:1. WCAG asks for at least 4.5:1 for normal text.

#172F21 color

#172F21 rgb(23, 47, 33)

Shades of green

The hex color #172F21 is a very dark, desaturated green.

In the RGB color model it is made of 9% red, 18.4% green and 12.9% blue (23, 47, 33).

Its hue angle is 145°, with 34% saturation and 14% lightness. For print, the CMYK equivalent is 51% cyan, 0% magenta, 30% yellow and 82% black.

The closest named color is Nightmare (#112211), a difference of 4.6 ΔE, a small difference.

White text is the more readable choice on this background (contrast 14.33:1).

#172F21 color codes

HEX	`#172F21`
RGB	`rgb(23, 47, 33)`
RGB percent	`rgb(9%, 18.4%, 12.9%)`
HSL	`hsl(145, 34%, 14%)`
HSV / HSB	`hsv(145, 51%, 18%)`
CMYK	`cmyk(51%, 0%, 30%, 82%)`
CIE LAB	`lab(17.11, -13.39, 6.13)`
CIE LCH	`lch(17.11, 14.72, 155.41)`
CIE XYZ	`xyz(1.644, 2.325, 1.801)`
Decimal	`1519393`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #172F21, 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 #172F21	Ratio	AA	AAA	AA large
Sample text	1.46:1	Fail	Fail	Fail
Sample text	14.33:1	Pass	Pass	Pass

#172F21 as text on	Ratio	AA	AAA	AA large
Sample text	14.33:1	Pass	Pass	Pass
Sample text	1.46:1	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 #172F21 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #172f21; }
.text { color: #172f21; }
.border { border: 2px solid #172f21; }
.transparent { background-color: rgb(23 47 33 / 50%); }
.gradient { background: linear-gradient(to right, #172f21, #172f2d); }

Background

Text color

Border

Similar colors

Closest common color name: British Racing Green.

Questions

What color is #172F21?: #172F21 is a very dark, desaturated green, closest to the named color Nightmare. It belongs to the green family of colors.
What is the RGB value of #172F21?: The RGB value is 23, 47, 33: 23 red, 47 green and 33 blue on a 0 to 255 scale.
What is the complementary color of #172F21?: The complementary color is #2F1725, found by rotating the hue 180° on the color wheel.
Is black or white text better on #172F21?: White text. Black text has a contrast ratio of 1.46:1 and white text 14.33:1. WCAG asks for at least 4.5:1 for normal text.