What color is #180A21?

#180A21 is a very dark, moderate violet, closest to the named color Shot in the Dark. It belongs to the black family of colors.

What is the RGB value of #180A21?

The RGB value is 24, 10, 33: 24 red, 10 green and 33 blue on a 0 to 255 scale.

What is the complementary color of #180A21?

The complementary color is #13210A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #180A21?

White text. Black text has a contrast ratio of 1.1:1 and white text 19.02:1. WCAG asks for at least 4.5:1 for normal text.

#180A21 color

#180A21 rgb(24, 10, 33)

Shades of black

The hex color #180A21 is a very dark, moderate violet.

In the RGB color model it is made of 9.4% red, 3.9% green and 12.9% blue (24, 10, 33).

Its hue angle is 277°, with 53% saturation and 8% lightness. For print, the CMYK equivalent is 27% cyan, 70% magenta, 0% yellow and 87% black.

The closest named color is Shot in the Dark (#1D0D1D), a difference of 3.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 19.02:1).

#180A21 color codes

HEX	`#180A21`
RGB	`rgb(24, 10, 33)`
RGB percent	`rgb(9.4%, 3.9%, 12.9%)`
HSL	`hsl(277, 53%, 8%)`
HSV / HSB	`hsv(277, 70%, 13%)`
CMYK	`cmyk(27%, 70%, 0%, 87%)`
CIE LAB	`lab(4.71, 10.83, -12.23)`
CIE LCH	`lch(4.71, 16.34, 311.52)`
CIE XYZ	`xyz(0.76, 0.521, 1.499)`
Decimal	`1575457`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #180A21, 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 #180A21	Ratio	AA	AAA	AA large
Sample text	1.1:1	Fail	Fail	Fail
Sample text	19.02:1	Pass	Pass	Pass

#180A21 as text on	Ratio	AA	AAA	AA large
Sample text	19.02:1	Pass	Pass	Pass
Sample text	1.1:1	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 #180A21 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #180a21; }
.text { color: #180a21; }
.border { border: 2px solid #180a21; }
.transparent { background-color: rgb(24 10 33 / 50%); }
.gradient { background: linear-gradient(to right, #180a21, #210a1f); }

Background

Text color

Border

Similar colors

Questions

What color is #180A21?: #180A21 is a very dark, moderate violet, closest to the named color Shot in the Dark. It belongs to the black family of colors.
What is the RGB value of #180A21?: The RGB value is 24, 10, 33: 24 red, 10 green and 33 blue on a 0 to 255 scale.
What is the complementary color of #180A21?: The complementary color is #13210A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #180A21?: White text. Black text has a contrast ratio of 1.1:1 and white text 19.02:1. WCAG asks for at least 4.5:1 for normal text.