What color is #15283F?

#15283F is a very dark, moderate azure, closest to the named color Eternal Darkness. It belongs to the blue family of colors.

What is the RGB value of #15283F?

The RGB value is 21, 40, 63: 21 red, 40 green and 63 blue on a 0 to 255 scale.

What is the complementary color of #15283F?

The complementary color is #3F2C15, found by rotating the hue 180° on the color wheel.

Is black or white text better on #15283F?

White text. Black text has a contrast ratio of 1.41:1 and white text 14.92:1. WCAG asks for at least 4.5:1 for normal text.

#15283F color

#15283F rgb(21, 40, 63)

Shades of blue

The hex color #15283F is a very dark, moderate azure.

In the RGB color model it is made of 8.2% red, 15.7% green and 24.7% blue (21, 40, 63).

Its hue angle is 213°, with 50% saturation and 16% lightness. For print, the CMYK equivalent is 67% cyan, 37% magenta, 0% yellow and 75% black.

The closest named color is Eternal Darkness (#1C2841), a difference of 3.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 14.92:1).

#15283F color codes

HEX	`#15283F`
RGB	`rgb(21, 40, 63)`
RGB percent	`rgb(8.2%, 15.7%, 24.7%)`
HSL	`hsl(213, 50%, 16%)`
HSV / HSB	`hsv(213, 67%, 25%)`
CMYK	`cmyk(67%, 37%, 0%, 75%)`
CIE LAB	`lab(15.67, 0.7, -16.97)`
CIE LCH	`lch(15.67, 16.98, 272.37)`
CIE XYZ	`xyz(1.965, 2.036, 4.991)`
Decimal	`1386559`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #15283F, 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 #15283F	Ratio	AA	AAA	AA large
Sample text	1.41:1	Fail	Fail	Fail
Sample text	14.92:1	Pass	Pass	Pass

#15283F as text on	Ratio	AA	AAA	AA large
Sample text	14.92:1	Pass	Pass	Pass
Sample text	1.41:1	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 #15283F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #15283f; }
.text { color: #15283f; }
.border { border: 2px solid #15283f; }
.transparent { background-color: rgb(21 40 63 / 50%); }
.gradient { background: linear-gradient(to right, #15283f, #17153f); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #15283F?: #15283F is a very dark, moderate azure, closest to the named color Eternal Darkness. It belongs to the blue family of colors.
What is the RGB value of #15283F?: The RGB value is 21, 40, 63: 21 red, 40 green and 63 blue on a 0 to 255 scale.
What is the complementary color of #15283F?: The complementary color is #3F2C15, found by rotating the hue 180° on the color wheel.
Is black or white text better on #15283F?: White text. Black text has a contrast ratio of 1.41:1 and white text 14.92:1. WCAG asks for at least 4.5:1 for normal text.