What color is #A100B9?

#A100B9 is a dark, vivid magenta, closest to the named color Nebula. It belongs to the purple family of colors.

What is the RGB value of #A100B9?

The RGB value is 161, 0, 185: 161 red, 0 green and 185 blue on a 0 to 255 scale.

What is the complementary color of #A100B9?

The complementary color is #18B900, found by rotating the hue 180° on the color wheel.

Is black or white text better on #A100B9?

White text. Black text has a contrast ratio of 3.22:1 and white text 6.53:1. WCAG asks for at least 4.5:1 for normal text.

#A100B9 color

#A100B9 rgb(161, 0, 185)

Shades of purple

The hex color #A100B9 is a dark, vivid magenta.

In the RGB color model it is made of 63.1% red, 0% green and 72.5% blue (161, 0, 185).

Its hue angle is 292°, with 100% saturation and 36% lightness. For print, the CMYK equivalent is 13% cyan, 100% magenta, 0% yellow and 27% black.

The closest named color is Nebula (#A104C3), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 6.53:1).

#A100B9 color codes

HEX	`#A100B9`
RGB	`rgb(161, 0, 185)`
RGB percent	`rgb(63.1%, 0%, 72.5%)`
HSL	`hsl(292, 100%, 36%)`
HSV / HSB	`hsv(292, 100%, 73%)`
CMYK	`cmyk(13%, 100%, 0%, 27%)`
CIE LAB	`lab(39.72, 73.45, -54.86)`
CIE LCH	`lch(39.72, 91.68, 323.24)`
CIE XYZ	`xyz(23.454, 11.081, 46.793)`
Decimal	`10551481`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #A100B9, 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 #A100B9	Ratio	AA	AAA	AA large
Sample text	3.22:1	Fail	Fail	Pass
Sample text	6.53:1	Pass	Fail	Pass

#A100B9 as text on	Ratio	AA	AAA	AA large
Sample text	6.53:1	Pass	Fail	Pass
Sample text	3.22:1	Fail	Fail	Pass

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 #A100B9 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #a100b9; }
.text { color: #a100b9; }
.border { border: 2px solid #a100b9; }
.transparent { background-color: rgb(161 0 185 / 50%); }
.gradient { background: linear-gradient(to right, #a100b9, #b90074); }

Background

Text color

Border

Similar colors

Questions

What color is #A100B9?: #A100B9 is a dark, vivid magenta, closest to the named color Nebula. It belongs to the purple family of colors.
What is the RGB value of #A100B9?: The RGB value is 161, 0, 185: 161 red, 0 green and 185 blue on a 0 to 255 scale.
What is the complementary color of #A100B9?: The complementary color is #18B900, found by rotating the hue 180° on the color wheel.
Is black or white text better on #A100B9?: White text. Black text has a contrast ratio of 3.22:1 and white text 6.53:1. WCAG asks for at least 4.5:1 for normal text.