What color is #1B1551?

#1B1551 is a dark, moderate blue, closest to the named color Deadly Depths. It belongs to the black family of colors.

What is the RGB value of #1B1551?

The RGB value is 27, 21, 81: 27 red, 21 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #1B1551?

The complementary color is #4B5115, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B1551?

White text. Black text has a contrast ratio of 1.27:1 and white text 16.5:1. WCAG asks for at least 4.5:1 for normal text.

#1B1551 color

#1B1551 rgb(27, 21, 81)

Shades of black

The hex color #1B1551 is a dark, moderate blue.

In the RGB color model it is made of 10.6% red, 8.2% green and 31.8% blue (27, 21, 81).

Its hue angle is 246°, with 59% saturation and 20% lightness. For print, the CMYK equivalent is 67% cyan, 74% magenta, 0% yellow and 68% black.

The closest named color is Deadly Depths (#111144), a difference of 2.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 16.5:1).

#1B1551 color codes

HEX	`#1B1551`
RGB	`rgb(27, 21, 81)`
RGB percent	`rgb(10.6%, 8.2%, 31.8%)`
HSL	`hsl(246, 59%, 20%)`
HSV / HSB	`hsv(246, 74%, 32%)`
CMYK	`cmyk(67%, 74%, 0%, 68%)`
CIE LAB	`lab(11.71, 23.16, -35.74)`
CIE LCH	`lch(11.71, 42.59, 302.94)`
CIE XYZ	`xyz(2.205, 1.363, 7.93)`
Decimal	`1774929`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B1551, 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 #1B1551	Ratio	AA	AAA	AA large
Sample text	1.27:1	Fail	Fail	Fail
Sample text	16.5:1	Pass	Pass	Pass

#1B1551 as text on	Ratio	AA	AAA	AA large
Sample text	16.5:1	Pass	Pass	Pass
Sample text	1.27:1	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 #1B1551 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b1551; }
.text { color: #1b1551; }
.border { border: 2px solid #1b1551; }
.transparent { background-color: rgb(27 21 81 / 50%); }
.gradient { background: linear-gradient(to right, #1b1551, #391551); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Blue.

Questions

What color is #1B1551?: #1B1551 is a dark, moderate blue, closest to the named color Deadly Depths. It belongs to the black family of colors.
What is the RGB value of #1B1551?: The RGB value is 27, 21, 81: 27 red, 21 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #1B1551?: The complementary color is #4B5115, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B1551?: White text. Black text has a contrast ratio of 1.27:1 and white text 16.5:1. WCAG asks for at least 4.5:1 for normal text.