What color is #A31109?

#A31109 is a dark, vivid red, closest to the named color Gory Red. It belongs to the red family of colors.

What is the RGB value of #A31109?

The RGB value is 163, 17, 9: 163 red, 17 green and 9 blue on a 0 to 255 scale.

What is the complementary color of #A31109?

The complementary color is #099BA3, found by rotating the hue 180° on the color wheel.

Is black or white text better on #A31109?

White text. Black text has a contrast ratio of 2.64:1 and white text 7.95:1. WCAG asks for at least 4.5:1 for normal text.

#A31109 color

#A31109 rgb(163, 17, 9)

Shades of red

The hex color #A31109 is a dark, vivid red.

In the RGB color model it is made of 63.9% red, 6.7% green and 3.5% blue (163, 17, 9).

Its hue angle is 3°, with 90% saturation and 34% lightness. For print, the CMYK equivalent is 0% cyan, 90% magenta, 94% yellow and 36% black.

The closest named color is Gory Red (#A30800), a difference of 1.3 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 7.95:1).

#A31109 color codes

HEX	`#A31109`
RGB	`rgb(163, 17, 9)`
RGB percent	`rgb(63.9%, 6.7%, 3.5%)`
HSL	`hsl(3, 90%, 34%)`
HSV / HSB	`hsv(3, 94%, 64%)`
CMYK	`cmyk(0%, 90%, 94%, 36%)`
CIE LAB	`lab(34.42, 55.01, 44.56)`
CIE LCH	`lch(34.42, 70.8, 39.01)`
CIE XYZ	`xyz(15.356, 8.21, 1.035)`
Decimal	`10686729`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #A31109, 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 #A31109	Ratio	AA	AAA	AA large
Sample text	2.64:1	Fail	Fail	Fail
Sample text	7.95:1	Pass	Pass	Pass

#A31109 as text on	Ratio	AA	AAA	AA large
Sample text	7.95:1	Pass	Pass	Pass
Sample text	2.64:1	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 #A31109 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #a31109; }
.text { color: #a31109; }
.border { border: 2px solid #a31109; }
.transparent { background-color: rgb(163 17 9 / 50%); }
.gradient { background: linear-gradient(to right, #a31109, #a35e09); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Red.

Questions

What color is #A31109?: #A31109 is a dark, vivid red, closest to the named color Gory Red. It belongs to the red family of colors.
What is the RGB value of #A31109?: The RGB value is 163, 17, 9: 163 red, 17 green and 9 blue on a 0 to 255 scale.
What is the complementary color of #A31109?: The complementary color is #099BA3, found by rotating the hue 180° on the color wheel.
Is black or white text better on #A31109?: White text. Black text has a contrast ratio of 2.64:1 and white text 7.95:1. WCAG asks for at least 4.5:1 for normal text.