What color is #0A172D?

#0A172D is a very dark, moderate azure, closest to the named color Trapped Darkness. It belongs to the black family of colors.

What is the RGB value of #0A172D?

The RGB value is 10, 23, 45: 10 red, 23 green and 45 blue on a 0 to 255 scale.

What is the complementary color of #0A172D?

The complementary color is #2D200A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #0A172D?

White text. Black text has a contrast ratio of 1.17:1 and white text 17.9:1. WCAG asks for at least 4.5:1 for normal text.

#0A172D color

#0A172D rgb(10, 23, 45)

Shades of black

The hex color #0A172D is a very dark, moderate azure.

In the RGB color model it is made of 3.9% red, 9% green and 17.6% blue (10, 23, 45).

Its hue angle is 218°, with 64% saturation and 11% lightness. For print, the CMYK equivalent is 78% cyan, 49% magenta, 0% yellow and 82% black.

The closest named color is Trapped Darkness (#0E1D32), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 17.9:1).

#0A172D color codes

HEX	`#0A172D`
RGB	`rgb(10, 23, 45)`
RGB percent	`rgb(3.9%, 9%, 17.6%)`
HSL	`hsl(218, 64%, 11%)`
HSV / HSB	`hsv(218, 78%, 18%)`
CMYK	`cmyk(78%, 49%, 0%, 82%)`
CIE LAB	`lab(7.83, 3.27, -16.52)`
CIE LCH	`lch(7.83, 16.84, 281.19)`
CIE XYZ	`xyz(0.905, 0.867, 2.602)`
Decimal	`661293`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #0A172D, 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 #0A172D	Ratio	AA	AAA	AA large
Sample text	1.17:1	Fail	Fail	Fail
Sample text	17.9:1	Pass	Pass	Pass

#0A172D as text on	Ratio	AA	AAA	AA large
Sample text	17.9:1	Pass	Pass	Pass
Sample text	1.17:1	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 #0A172D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #0a172d; }
.text { color: #0a172d; }
.border { border: 2px solid #0a172d; }
.transparent { background-color: rgb(10 23 45 / 50%); }
.gradient { background: linear-gradient(to right, #0a172d, #0f0a2d); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #0A172D?: #0A172D is a very dark, moderate azure, closest to the named color Trapped Darkness. It belongs to the black family of colors.
What is the RGB value of #0A172D?: The RGB value is 10, 23, 45: 10 red, 23 green and 45 blue on a 0 to 255 scale.
What is the complementary color of #0A172D?: The complementary color is #2D200A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #0A172D?: White text. Black text has a contrast ratio of 1.17:1 and white text 17.9:1. WCAG asks for at least 4.5:1 for normal text.