What color is #172739?

#172739 is a very dark, desaturated azure, closest to the named color The Count’s Black. It belongs to the blue family of colors.

What is the RGB value of #172739?

The RGB value is 23, 39, 57: 23 red, 39 green and 57 blue on a 0 to 255 scale.

What is the complementary color of #172739?

The complementary color is #392917, found by rotating the hue 180° on the color wheel.

Is black or white text better on #172739?

White text. Black text has a contrast ratio of 1.39:1 and white text 15.15:1. WCAG asks for at least 4.5:1 for normal text.

#172739 color

#172739 rgb(23, 39, 57)

Shades of blue

The hex color #172739 is a very dark, desaturated azure.

In the RGB color model it is made of 9% red, 15.3% green and 22.4% blue (23, 39, 57).

Its hue angle is 212°, with 43% saturation and 16% lightness. For print, the CMYK equivalent is 60% cyan, 32% magenta, 0% yellow and 78% black.

The closest named color is The Count’s Black (#102030), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 15.15:1).

#172739 color codes

HEX	`#172739`
RGB	`rgb(23, 39, 57)`
RGB percent	`rgb(9%, 15.3%, 22.4%)`
HSL	`hsl(212, 43%, 16%)`
HSV / HSB	`hsv(212, 60%, 22%)`
CMYK	`cmyk(60%, 32%, 0%, 78%)`
CIE LAB	`lab(15.11, -0.39, -13.66)`
CIE LCH	`lch(15.11, 13.66, 268.38)`
CIE XYZ	`xyz(1.817, 1.928, 4.147)`
Decimal	`1517369`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #172739, 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 #172739	Ratio	AA	AAA	AA large
Sample text	1.39:1	Fail	Fail	Fail
Sample text	15.15:1	Pass	Pass	Pass

#172739 as text on	Ratio	AA	AAA	AA large
Sample text	15.15:1	Pass	Pass	Pass
Sample text	1.39:1	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 #172739 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #172739; }
.text { color: #172739; }
.border { border: 2px solid #172739; }
.transparent { background-color: rgb(23 39 57 / 50%); }
.gradient { background: linear-gradient(to right, #172739, #181739); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #172739?: #172739 is a very dark, desaturated azure, closest to the named color The Count’s Black. It belongs to the blue family of colors.
What is the RGB value of #172739?: The RGB value is 23, 39, 57: 23 red, 39 green and 57 blue on a 0 to 255 scale.
What is the complementary color of #172739?: The complementary color is #392917, found by rotating the hue 180° on the color wheel.
Is black or white text better on #172739?: White text. Black text has a contrast ratio of 1.39:1 and white text 15.15:1. WCAG asks for at least 4.5:1 for normal text.