What color is #23313B?

#23313B is a very dark, desaturated azure, closest to the named color Petrol Slumber. It belongs to the black family of colors.

What is the RGB value of #23313B?

The RGB value is 35, 49, 59: 35 red, 49 green and 59 blue on a 0 to 255 scale.

What is the complementary color of #23313B?

The complementary color is #3B2D23, found by rotating the hue 180° on the color wheel.

Is black or white text better on #23313B?

White text. Black text has a contrast ratio of 1.57:1 and white text 13.34:1. WCAG asks for at least 4.5:1 for normal text.

#23313B color

#23313B rgb(35, 49, 59)

Shades of black

The hex color #23313B is a very dark, desaturated azure.

In the RGB color model it is made of 13.7% red, 19.2% green and 23.1% blue (35, 49, 59).

Its hue angle is 205°, with 26% saturation and 18% lightness. For print, the CMYK equivalent is 41% cyan, 17% magenta, 0% yellow and 77% black.

The closest named color is Petrol Slumber (#243640), a difference of 2.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 13.34:1).

#23313B color codes

HEX	`#23313B`
RGB	`rgb(35, 49, 59)`
RGB percent	`rgb(13.7%, 19.2%, 23.1%)`
HSL	`hsl(205, 26%, 18%)`
HSV / HSB	`hsv(205, 41%, 23%)`
CMYK	`cmyk(41%, 17%, 0%, 77%)`
CIE LAB	`lab(19.51, -2.8, -8.2)`
CIE LCH	`lch(19.51, 8.66, 251.15)`
CIE XYZ	`xyz(2.581, 2.87, 4.555)`
Decimal	`2306363`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #23313B, 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 #23313B	Ratio	AA	AAA	AA large
Sample text	1.57:1	Fail	Fail	Fail
Sample text	13.34:1	Pass	Pass	Pass

#23313B as text on	Ratio	AA	AAA	AA large
Sample text	13.34:1	Pass	Pass	Pass
Sample text	1.57:1	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 #23313B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #23313b; }
.text { color: #23313b; }
.border { border: 2px solid #23313b; }
.transparent { background-color: rgb(35 49 59 / 50%); }
.gradient { background: linear-gradient(to right, #23313b, #23253b); }

Background

Text color

Border

Similar colors

Questions

What color is #23313B?: #23313B is a very dark, desaturated azure, closest to the named color Petrol Slumber. It belongs to the black family of colors.
What is the RGB value of #23313B?: The RGB value is 35, 49, 59: 35 red, 49 green and 59 blue on a 0 to 255 scale.
What is the complementary color of #23313B?: The complementary color is #3B2D23, found by rotating the hue 180° on the color wheel.
Is black or white text better on #23313B?: White text. Black text has a contrast ratio of 1.57:1 and white text 13.34:1. WCAG asks for at least 4.5:1 for normal text.