What color is #21356F?

#21356F is a dark, moderate blue, closest to the named color Atlantic Navy. It belongs to the blue family of colors.

What is the RGB value of #21356F?

The RGB value is 33, 53, 111: 33 red, 53 green and 111 blue on a 0 to 255 scale.

What is the complementary color of #21356F?

The complementary color is #6F5B21, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21356F?

White text. Black text has a contrast ratio of 1.8:1 and white text 11.64:1. WCAG asks for at least 4.5:1 for normal text.

#21356F color

#21356F rgb(33, 53, 111)

Shades of blue

The hex color #21356F is a dark, moderate blue.

In the RGB color model it is made of 12.9% red, 20.8% green and 43.5% blue (33, 53, 111).

Its hue angle is 225°, with 54% saturation and 28% lightness. For print, the CMYK equivalent is 70% cyan, 52% magenta, 0% yellow and 56% black.

The closest named color is Atlantic Navy (#13336F), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.64:1).

#21356F color codes

HEX	`#21356F`
RGB	`rgb(33, 53, 111)`
RGB percent	`rgb(12.9%, 20.8%, 43.5%)`
HSL	`hsl(225, 54%, 28%)`
HSV / HSB	`hsv(225, 70%, 44%)`
CMYK	`cmyk(70%, 52%, 0%, 56%)`
CIE LAB	`lab(23.73, 13.17, -36.07)`
CIE LCH	`lch(23.73, 38.4, 290.07)`
CIE XYZ	`xyz(4.769, 4.017, 15.56)`
Decimal	`2176367`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21356F, 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 #21356F	Ratio	AA	AAA	AA large
Sample text	1.8:1	Fail	Fail	Fail
Sample text	11.64:1	Pass	Pass	Pass

#21356F as text on	Ratio	AA	AAA	AA large
Sample text	11.64:1	Pass	Pass	Pass
Sample text	1.8:1	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 #21356F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21356f; }
.text { color: #21356f; }
.border { border: 2px solid #21356f; }
.transparent { background-color: rgb(33 53 111 / 50%); }
.gradient { background: linear-gradient(to right, #21356f, #34216f); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #21356F?: #21356F is a dark, moderate blue, closest to the named color Atlantic Navy. It belongs to the blue family of colors.
What is the RGB value of #21356F?: The RGB value is 33, 53, 111: 33 red, 53 green and 111 blue on a 0 to 255 scale.
What is the complementary color of #21356F?: The complementary color is #6F5B21, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21356F?: White text. Black text has a contrast ratio of 1.8:1 and white text 11.64:1. WCAG asks for at least 4.5:1 for normal text.