What color is #0A1901?

#0A1901 is a very dark, vivid green, closest to the named color Nightmare. It belongs to the black family of colors.

What is the RGB value of #0A1901?

The RGB value is 10, 25, 1: 10 red, 25 green and 1 blue on a 0 to 255 scale.

What is the complementary color of #0A1901?

The complementary color is #100119, found by rotating the hue 180° on the color wheel.

Is black or white text better on #0A1901?

White text. Black text has a contrast ratio of 1.15:1 and white text 18.22:1. WCAG asks for at least 4.5:1 for normal text.

#0A1901 color

#0A1901 rgb(10, 25, 1)

Shades of black

The hex color #0A1901 is a very dark, vivid green.

In the RGB color model it is made of 3.9% red, 9.8% green and 0.4% blue (10, 25, 1).

Its hue angle is 98°, with 92% saturation and 5% lightness. For print, the CMYK equivalent is 60% cyan, 0% magenta, 96% yellow and 90% black.

The closest named color is Nightmare (#112211), a difference of 3.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 18.22:1).

#0A1901 color codes

HEX	`#0A1901`
RGB	`rgb(10, 25, 1)`
RGB percent	`rgb(3.9%, 9.8%, 0.4%)`
HSL	`hsl(98, 92%, 5%)`
HSV / HSB	`hsv(98, 96%, 10%)`
CMYK	`cmyk(60%, 0%, 96%, 90%)`
CIE LAB	`lab(6.88, -10.07, 9.71)`
CIE LCH	`lch(6.88, 13.99, 136.05)`
CIE XYZ	`xyz(0.478, 0.762, 0.151)`
Decimal	`661761`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #0A1901, 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 #0A1901	Ratio	AA	AAA	AA large
Sample text	1.15:1	Fail	Fail	Fail
Sample text	18.22:1	Pass	Pass	Pass

#0A1901 as text on	Ratio	AA	AAA	AA large
Sample text	18.22:1	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 #0A1901 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #0a1901; }
.text { color: #0a1901; }
.border { border: 2px solid #0a1901; }
.transparent { background-color: rgb(10 25 1 / 50%); }
.gradient { background: linear-gradient(to right, #0a1901, #011904); }

Background

Text color

Border

Similar colors

Closest common color name: Off Black.

Questions

What color is #0A1901?: #0A1901 is a very dark, vivid green, closest to the named color Nightmare. It belongs to the black family of colors.
What is the RGB value of #0A1901?: The RGB value is 10, 25, 1: 10 red, 25 green and 1 blue on a 0 to 255 scale.
What is the complementary color of #0A1901?: The complementary color is #100119, found by rotating the hue 180° on the color wheel.
Is black or white text better on #0A1901?: White text. Black text has a contrast ratio of 1.15:1 and white text 18.22:1. WCAG asks for at least 4.5:1 for normal text.