What color is #0A180A?

#0A180A is a very dark, desaturated green, closest to the named color Cosmic Bit Flip. It belongs to the black family of colors.

What is the RGB value of #0A180A?

The RGB value is 10, 24, 10: 10 red, 24 green and 10 blue on a 0 to 255 scale.

What is the complementary color of #0A180A?

The complementary color is #180A18, found by rotating the hue 180° on the color wheel.

Is black or white text better on #0A180A?

White text. Black text has a contrast ratio of 1.15:1 and white text 18.29:1. WCAG asks for at least 4.5:1 for normal text.

#0A180A color

#0A180A rgb(10, 24, 10)

Shades of black

The hex color #0A180A is a very dark, desaturated green.

In the RGB color model it is made of 3.9% red, 9.4% green and 3.9% blue (10, 24, 10).

Its hue angle is 120°, with 41% saturation and 7% lightness. For print, the CMYK equivalent is 58% cyan, 0% magenta, 58% yellow and 91% black.

The closest named color is Cosmic Bit Flip (#001000), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 18.29:1).

#0A180A color codes

HEX	`#0A180A`
RGB	`rgb(10, 24, 10)`
RGB percent	`rgb(3.9%, 9.4%, 3.9%)`
HSL	`hsl(120, 41%, 7%)`
HSV / HSB	`hsv(120, 58%, 9%)`
CMYK	`cmyk(58%, 0%, 58%, 91%)`
CIE LAB	`lab(6.68, -8.05, 5.75)`
CIE LCH	`lch(6.68, 9.89, 144.44)`
CIE XYZ	`xyz(0.507, 0.74, 0.403)`
Decimal	`661514`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #0A180A, 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 #0A180A	Ratio	AA	AAA	AA large
Sample text	1.15:1	Fail	Fail	Fail
Sample text	18.29:1	Pass	Pass	Pass

#0A180A as text on	Ratio	AA	AAA	AA large
Sample text	18.29:1	Pass	Pass	Pass
Sample text	1.15:1	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 #0A180A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #0a180a; }
.text { color: #0a180a; }
.border { border: 2px solid #0a180a; }
.transparent { background-color: rgb(10 24 10 / 50%); }
.gradient { background: linear-gradient(to right, #0a180a, #0a1811); }

Background

Text color

Border

Similar colors

Closest common color name: Off Black.

Questions

What color is #0A180A?: #0A180A is a very dark, desaturated green, closest to the named color Cosmic Bit Flip. It belongs to the black family of colors.
What is the RGB value of #0A180A?: The RGB value is 10, 24, 10: 10 red, 24 green and 10 blue on a 0 to 255 scale.
What is the complementary color of #0A180A?: The complementary color is #180A18, found by rotating the hue 180° on the color wheel.
Is black or white text better on #0A180A?: White text. Black text has a contrast ratio of 1.15:1 and white text 18.29:1. WCAG asks for at least 4.5:1 for normal text.