What color is #15243F?

#15243F 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 #15243F?

The RGB value is 21, 36, 63: 21 red, 36 green and 63 blue on a 0 to 255 scale.

What is the complementary color of #15243F?

The complementary color is #3F3015, found by rotating the hue 180° on the color wheel.

Is black or white text better on #15243F?

White text. Black text has a contrast ratio of 1.36:1 and white text 15.49:1. WCAG asks for at least 4.5:1 for normal text.

#15243F color

#15243F rgb(21, 36, 63)

Shades of blue

The hex color #15243F is a very dark, moderate azure.

In the RGB color model it is made of 8.2% red, 14.1% green and 24.7% blue (21, 36, 63).

Its hue angle is 219°, with 50% saturation and 16% lightness. For print, the CMYK equivalent is 67% cyan, 43% magenta, 0% yellow and 75% black.

The closest named color is Eternal Darkness (#1C2841), a difference of 1.6 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 15.49:1).

#15243F color codes

HEX	`#15243F`
RGB	`rgb(21, 36, 63)`
RGB percent	`rgb(8.2%, 14.1%, 24.7%)`
HSL	`hsl(219, 50%, 16%)`
HSV / HSB	`hsv(219, 67%, 25%)`
CMYK	`cmyk(67%, 43%, 0%, 75%)`
CIE LAB	`lab(14.29, 3.63, -19.15)`
CIE LCH	`lch(14.29, 19.5, 280.75)`
CIE XYZ	`xyz(1.837, 1.78, 4.948)`
Decimal	`1385535`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #15243F, 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 #15243F	Ratio	AA	AAA	AA large
Sample text	1.36:1	Fail	Fail	Fail
Sample text	15.49:1	Pass	Pass	Pass

#15243F as text on	Ratio	AA	AAA	AA large
Sample text	15.49:1	Pass	Pass	Pass
Sample text	1.36:1	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 #15243F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #15243f; }
.text { color: #15243f; }
.border { border: 2px solid #15243f; }
.transparent { background-color: rgb(21 36 63 / 50%); }
.gradient { background: linear-gradient(to right, #15243f, #1b153f); }

Background

Text color

Border

Similar colors

Questions

What color is #15243F?: #15243F 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 #15243F?: The RGB value is 21, 36, 63: 21 red, 36 green and 63 blue on a 0 to 255 scale.
What is the complementary color of #15243F?: The complementary color is #3F3015, found by rotating the hue 180° on the color wheel.
Is black or white text better on #15243F?: White text. Black text has a contrast ratio of 1.36:1 and white text 15.49:1. WCAG asks for at least 4.5:1 for normal text.