What color is #153A56?

#153A56 is a dark, moderate azure, closest to the named color Poseidon. It belongs to the blue family of colors.

What is the RGB value of #153A56?

The RGB value is 21, 58, 86: 21 red, 58 green and 86 blue on a 0 to 255 scale.

What is the complementary color of #153A56?

The complementary color is #563115, found by rotating the hue 180° on the color wheel.

Is black or white text better on #153A56?

White text. Black text has a contrast ratio of 1.77:1 and white text 11.85:1. WCAG asks for at least 4.5:1 for normal text.

#153A56 color

#153A56 rgb(21, 58, 86)

Shades of blue

The hex color #153A56 is a dark, moderate azure.

In the RGB color model it is made of 8.2% red, 22.7% green and 33.7% blue (21, 58, 86).

Its hue angle is 206°, with 61% saturation and 21% lightness. For print, the CMYK equivalent is 76% cyan, 33% magenta, 0% yellow and 66% black.

The closest named color is Poseidon (#143C5D), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.85:1).

#153A56 color codes

HEX	`#153A56`
RGB	`rgb(21, 58, 86)`
RGB percent	`rgb(8.2%, 22.7%, 33.7%)`
HSL	`hsl(206, 61%, 21%)`
HSV / HSB	`hsv(206, 76%, 34%)`
CMYK	`cmyk(76%, 33%, 0%, 66%)`
CIE LAB	`lab(23.19, -2.57, -20.7)`
CIE LCH	`lch(23.19, 20.86, 262.93)`
CIE XYZ	`xyz(3.501, 3.857, 9.362)`
Decimal	`1391190`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #153A56, 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 #153A56	Ratio	AA	AAA	AA large
Sample text	1.77:1	Fail	Fail	Fail
Sample text	11.85:1	Pass	Pass	Pass

#153A56 as text on	Ratio	AA	AAA	AA large
Sample text	11.85:1	Pass	Pass	Pass
Sample text	1.77:1	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 #153A56 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #153a56; }
.text { color: #153a56; }
.border { border: 2px solid #153a56; }
.transparent { background-color: rgb(21 58 86 / 50%); }
.gradient { background: linear-gradient(to right, #153a56, #151a56); }

Background

Text color

Border

Similar colors

Questions

What color is #153A56?: #153A56 is a dark, moderate azure, closest to the named color Poseidon. It belongs to the blue family of colors.
What is the RGB value of #153A56?: The RGB value is 21, 58, 86: 21 red, 58 green and 86 blue on a 0 to 255 scale.
What is the complementary color of #153A56?: The complementary color is #563115, found by rotating the hue 180° on the color wheel.
Is black or white text better on #153A56?: White text. Black text has a contrast ratio of 1.77:1 and white text 11.85:1. WCAG asks for at least 4.5:1 for normal text.