What color is #21506D?

#21506D is a dark, moderate azure, closest to the named color Seafarer. It belongs to the blue family of colors.

What is the RGB value of #21506D?

The RGB value is 33, 80, 109: 33 red, 80 green and 109 blue on a 0 to 255 scale.

What is the complementary color of #21506D?

The complementary color is #6D3E21, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21506D?

White text. Black text has a contrast ratio of 2.43:1 and white text 8.63:1. WCAG asks for at least 4.5:1 for normal text.

#21506D color

#21506D rgb(33, 80, 109)

Shades of blue

The hex color #21506D is a dark, moderate azure.

In the RGB color model it is made of 12.9% red, 31.4% green and 42.7% blue (33, 80, 109).

Its hue angle is 203°, with 54% saturation and 28% lightness. For print, the CMYK equivalent is 70% cyan, 27% magenta, 0% yellow and 57% black.

The closest named color is Seafarer (#204D68), a difference of 1.2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 8.63:1).

#21506D color codes

HEX	`#21506D`
RGB	`rgb(33, 80, 109)`
RGB percent	`rgb(12.9%, 31.4%, 42.7%)`
HSL	`hsl(203, 54%, 28%)`
HSV / HSB	`hsv(203, 70%, 43%)`
CMYK	`cmyk(70%, 27%, 0%, 57%)`
CIE LAB	`lab(32.18, -5.79, -21.4)`
CIE LCH	`lch(32.18, 22.17, 254.85)`
CIE XYZ	`xyz(6.255, 7.164, 15.518)`
Decimal	`2183277`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21506D, 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 #21506D	Ratio	AA	AAA	AA large
Sample text	2.43:1	Fail	Fail	Fail
Sample text	8.63:1	Pass	Pass	Pass

#21506D as text on	Ratio	AA	AAA	AA large
Sample text	8.63:1	Pass	Pass	Pass
Sample text	2.43:1	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 #21506D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21506d; }
.text { color: #21506d; }
.border { border: 2px solid #21506d; }
.transparent { background-color: rgb(33 80 109 / 50%); }
.gradient { background: linear-gradient(to right, #21506d, #212a6d); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #21506D?: #21506D is a dark, moderate azure, closest to the named color Seafarer. It belongs to the blue family of colors.
What is the RGB value of #21506D?: The RGB value is 33, 80, 109: 33 red, 80 green and 109 blue on a 0 to 255 scale.
What is the complementary color of #21506D?: The complementary color is #6D3E21, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21506D?: White text. Black text has a contrast ratio of 2.43:1 and white text 8.63:1. WCAG asks for at least 4.5:1 for normal text.