What color is #040A11?

#040A11 is a very dark, moderate azure, closest to the named color Rich Black. It belongs to the black family of colors.

What is the RGB value of #040A11?

The RGB value is 4, 10, 17: 4 red, 10 green and 17 blue on a 0 to 255 scale.

What is the complementary color of #040A11?

The complementary color is #110B04, found by rotating the hue 180° on the color wheel.

Is black or white text better on #040A11?

White text. Black text has a contrast ratio of 1.06:1 and white text 19.87:1. WCAG asks for at least 4.5:1 for normal text.

#040A11 color

#040A11 rgb(4, 10, 17)

Shades of black

The hex color #040A11 is a very dark, moderate azure.

In the RGB color model it is made of 1.6% red, 3.9% green and 6.7% blue (4, 10, 17).

Its hue angle is 212°, with 62% saturation and 4% lightness. For print, the CMYK equivalent is 76% cyan, 41% magenta, 0% yellow and 93% black.

The closest named color is Rich Black (#010B13), a difference of 1.4 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 19.87:1).

#040A11 color codes

HEX	`#040A11`
RGB	`rgb(4, 10, 17)`
RGB percent	`rgb(1.6%, 3.9%, 6.7%)`
HSL	`hsl(212, 62%, 4%)`
HSV / HSB	`hsv(212, 76%, 7%)`
CMYK	`cmyk(76%, 41%, 0%, 93%)`
CIE LAB	`lab(2.56, -0.39, -3.76)`
CIE LCH	`lch(2.56, 3.78, 264.05)`
CIE XYZ	`xyz(0.26, 0.283, 0.571)`
Decimal	`264721`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #040A11, 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 #040A11	Ratio	AA	AAA	AA large
Sample text	1.06:1	Fail	Fail	Fail
Sample text	19.87:1	Pass	Pass	Pass

#040A11 as text on	Ratio	AA	AAA	AA large
Sample text	19.87:1	Pass	Pass	Pass
Sample text	1.06:1	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 #040A11 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #040a11; }
.text { color: #040a11; }
.border { border: 2px solid #040a11; }
.transparent { background-color: rgb(4 10 17 / 50%); }
.gradient { background: linear-gradient(to right, #040a11, #040411); }

Background

Text color

Border

Similar colors

Questions

What color is #040A11?: #040A11 is a very dark, moderate azure, closest to the named color Rich Black. It belongs to the black family of colors.
What is the RGB value of #040A11?: The RGB value is 4, 10, 17: 4 red, 10 green and 17 blue on a 0 to 255 scale.
What is the complementary color of #040A11?: The complementary color is #110B04, found by rotating the hue 180° on the color wheel.
Is black or white text better on #040A11?: White text. Black text has a contrast ratio of 1.06:1 and white text 19.87:1. WCAG asks for at least 4.5:1 for normal text.