What color is #21333C?

#21333C is a very dark, desaturated azure, closest to the named color Petrol Slumber. It belongs to the gray family of colors.

What is the RGB value of #21333C?

The RGB value is 33, 51, 60: 33 red, 51 green and 60 blue on a 0 to 255 scale.

What is the complementary color of #21333C?

The complementary color is #3C2A21, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21333C?

White text. Black text has a contrast ratio of 1.6:1 and white text 13.1:1. WCAG asks for at least 4.5:1 for normal text.

#21333C color

#21333C rgb(33, 51, 60)

Shades of gray

The hex color #21333C is a very dark, desaturated azure.

In the RGB color model it is made of 12.9% red, 20% green and 23.5% blue (33, 51, 60).

Its hue angle is 200°, with 29% saturation and 18% lightness. For print, the CMYK equivalent is 45% cyan, 15% magenta, 0% yellow and 76% black.

The closest named color is Petrol Slumber (#243640), a difference of 1.1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 13.1:1).

#21333C color codes

HEX	`#21333C`
RGB	`rgb(33, 51, 60)`
RGB percent	`rgb(12.9%, 20%, 23.5%)`
HSL	`hsl(200, 29%, 18%)`
HSV / HSB	`hsv(200, 45%, 24%)`
CMYK	`cmyk(45%, 15%, 0%, 76%)`
CIE LAB	`lab(20.11, -4.49, -7.99)`
CIE LCH	`lch(20.11, 9.16, 240.63)`
CIE XYZ	`xyz(2.626, 3.017, 4.718)`
Decimal	`2175804`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21333C, 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 #21333C	Ratio	AA	AAA	AA large
Sample text	1.6:1	Fail	Fail	Fail
Sample text	13.1:1	Pass	Pass	Pass

#21333C as text on	Ratio	AA	AAA	AA large
Sample text	13.1:1	Pass	Pass	Pass
Sample text	1.6:1	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 #21333C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21333c; }
.text { color: #21333c; }
.border { border: 2px solid #21333c; }
.transparent { background-color: rgb(33 51 60 / 50%); }
.gradient { background: linear-gradient(to right, #21333c, #21263c); }

Background

Text color

Border

Similar colors

Questions

What color is #21333C?: #21333C is a very dark, desaturated azure, closest to the named color Petrol Slumber. It belongs to the gray family of colors.
What is the RGB value of #21333C?: The RGB value is 33, 51, 60: 33 red, 51 green and 60 blue on a 0 to 255 scale.
What is the complementary color of #21333C?: The complementary color is #3C2A21, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21333C?: White text. Black text has a contrast ratio of 1.6:1 and white text 13.1:1. WCAG asks for at least 4.5:1 for normal text.