What color is #040B13?

#040B13 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 #040B13?

The RGB value is 4, 11, 19: 4 red, 11 green and 19 blue on a 0 to 255 scale.

What is the complementary color of #040B13?

The complementary color is #130C04, found by rotating the hue 180° on the color wheel.

Is black or white text better on #040B13?

White text. Black text has a contrast ratio of 1.06:1 and white text 19.77:1. WCAG asks for at least 4.5:1 for normal text.

#040B13 color

#040B13 rgb(4, 11, 19)

Shades of black

The hex color #040B13 is a very dark, moderate azure.

In the RGB color model it is made of 1.6% red, 4.3% green and 7.5% blue (4, 11, 19).

Its hue angle is 212°, with 65% saturation and 5% lightness. For print, the CMYK equivalent is 79% cyan, 42% magenta, 0% yellow and 93% black.

The closest named color is Rich Black (#010B13), a difference of 1.1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 19.77:1).

#040B13 color codes

HEX	`#040B13`
RGB	`rgb(4, 11, 19)`
RGB percent	`rgb(1.6%, 4.3%, 7.5%)`
HSL	`hsl(212, 65%, 5%)`
HSV / HSB	`hsv(212, 79%, 7%)`
CMYK	`cmyk(79%, 42%, 0%, 93%)`
CIE LAB	`lab(2.82, -0.39, -4.59)`
CIE LCH	`lch(2.82, 4.61, 265.19)`
CIE XYZ	`xyz(0.287, 0.312, 0.661)`
Decimal	`264979`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #040B13, 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 #040B13	Ratio	AA	AAA	AA large
Sample text	1.06:1	Fail	Fail	Fail
Sample text	19.77:1	Pass	Pass	Pass

#040B13 as text on	Ratio	AA	AAA	AA large
Sample text	19.77:1	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 #040B13 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #040b13; }
.text { color: #040b13; }
.border { border: 2px solid #040b13; }
.transparent { background-color: rgb(4 11 19 / 50%); }
.gradient { background: linear-gradient(to right, #040b13, #040413); }

Background

Text color

Border

Similar colors

Questions

What color is #040B13?: #040B13 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 #040B13?: The RGB value is 4, 11, 19: 4 red, 11 green and 19 blue on a 0 to 255 scale.
What is the complementary color of #040B13?: The complementary color is #130C04, found by rotating the hue 180° on the color wheel.
Is black or white text better on #040B13?: White text. Black text has a contrast ratio of 1.06:1 and white text 19.77:1. WCAG asks for at least 4.5:1 for normal text.