What color is #173F42?

#173F42 is a very dark, desaturated cyan, closest to the named color Emerald Forest. It belongs to the teal family of colors.

What is the RGB value of #173F42?

The RGB value is 23, 63, 66: 23 red, 63 green and 66 blue on a 0 to 255 scale.

What is the complementary color of #173F42?

The complementary color is #421A17, found by rotating the hue 180° on the color wheel.

Is black or white text better on #173F42?

White text. Black text has a contrast ratio of 1.83:1 and white text 11.5:1. WCAG asks for at least 4.5:1 for normal text.

#173F42 color

#173F42 rgb(23, 63, 66)

Shades of teal

The hex color #173F42 is a very dark, desaturated cyan.

In the RGB color model it is made of 9% red, 24.7% green and 25.9% blue (23, 63, 66).

Its hue angle is 184°, with 48% saturation and 17% lightness. For print, the CMYK equivalent is 65% cyan, 5% magenta, 0% yellow and 74% black.

The closest named color is Emerald Forest (#224347), a difference of 2.3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.5:1).

#173F42 color codes

HEX	`#173F42`
RGB	`rgb(23, 63, 66)`
RGB percent	`rgb(9%, 24.7%, 25.9%)`
HSL	`hsl(184, 48%, 17%)`
HSV / HSB	`hsv(184, 65%, 26%)`
CMYK	`cmyk(65%, 5%, 0%, 74%)`
CIE LAB	`lab(24.1, -12.85, -6.06)`
CIE LCH	`lch(24.1, 14.2, 205.26)`
CIE XYZ	`xyz(3.114, 4.13, 5.786)`
Decimal	`1523522`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #173F42, 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 #173F42	Ratio	AA	AAA	AA large
Sample text	1.83:1	Fail	Fail	Fail
Sample text	11.5:1	Pass	Pass	Pass

#173F42 as text on	Ratio	AA	AAA	AA large
Sample text	11.5:1	Pass	Pass	Pass
Sample text	1.83:1	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 #173F42 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #173f42; }
.text { color: #173f42; }
.border { border: 2px solid #173f42; }
.transparent { background-color: rgb(23 63 66 / 50%); }
.gradient { background: linear-gradient(to right, #173f42, #172a42); }

Background

Text color

Border

Similar colors

Questions

What color is #173F42?: #173F42 is a very dark, desaturated cyan, closest to the named color Emerald Forest. It belongs to the teal family of colors.
What is the RGB value of #173F42?: The RGB value is 23, 63, 66: 23 red, 63 green and 66 blue on a 0 to 255 scale.
What is the complementary color of #173F42?: The complementary color is #421A17, found by rotating the hue 180° on the color wheel.
Is black or white text better on #173F42?: White text. Black text has a contrast ratio of 1.83:1 and white text 11.5:1. WCAG asks for at least 4.5:1 for normal text.