What color is #181B56?

#181B56 is a dark, moderate blue, closest to the named color Spacescape. It belongs to the blue family of colors.

What is the RGB value of #181B56?

The RGB value is 24, 27, 86: 24 red, 27 green and 86 blue on a 0 to 255 scale.

What is the complementary color of #181B56?

The complementary color is #565318, found by rotating the hue 180° on the color wheel.

Is black or white text better on #181B56?

White text. Black text has a contrast ratio of 1.33:1 and white text 15.79:1. WCAG asks for at least 4.5:1 for normal text.

#181B56 color

#181B56 rgb(24, 27, 86)

Shades of blue

The hex color #181B56 is a dark, moderate blue.

In the RGB color model it is made of 9.4% red, 10.6% green and 33.7% blue (24, 27, 86).

Its hue angle is 237°, with 56% saturation and 22% lightness. For print, the CMYK equivalent is 72% cyan, 69% magenta, 0% yellow and 66% black.

The closest named color is Spacescape (#222255), a difference of 2.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 15.79:1).

#181B56 color codes

HEX	`#181B56`
RGB	`rgb(24, 27, 86)`
RGB percent	`rgb(9.4%, 10.6%, 33.7%)`
HSL	`hsl(237, 56%, 22%)`
HSV / HSB	`hsv(237, 72%, 34%)`
CMYK	`cmyk(72%, 69%, 0%, 66%)`
CIE LAB	`lab(13.53, 20.37, -36.18)`
CIE LCH	`lch(13.53, 41.52, 299.38)`
CIE XYZ	`xyz(2.448, 1.65, 8.992)`
Decimal	`1579862`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #181B56, 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 #181B56	Ratio	AA	AAA	AA large
Sample text	1.33:1	Fail	Fail	Fail
Sample text	15.79:1	Pass	Pass	Pass

#181B56 as text on	Ratio	AA	AAA	AA large
Sample text	15.79:1	Pass	Pass	Pass
Sample text	1.33:1	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 #181B56 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #181b56; }
.text { color: #181b56; }
.border { border: 2px solid #181b56; }
.transparent { background-color: rgb(24 27 86 / 50%); }
.gradient { background: linear-gradient(to right, #181b56, #341856); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Blue.

Questions

What color is #181B56?: #181B56 is a dark, moderate blue, closest to the named color Spacescape. It belongs to the blue family of colors.
What is the RGB value of #181B56?: The RGB value is 24, 27, 86: 24 red, 27 green and 86 blue on a 0 to 255 scale.
What is the complementary color of #181B56?: The complementary color is #565318, found by rotating the hue 180° on the color wheel.
Is black or white text better on #181B56?: White text. Black text has a contrast ratio of 1.33:1 and white text 15.79:1. WCAG asks for at least 4.5:1 for normal text.