What color is #1B2133?

#1B2133 is a very dark, desaturated blue, closest to the named color Moonless Mystery. It belongs to the blue family of colors.

What is the RGB value of #1B2133?

The RGB value is 27, 33, 51: 27 red, 33 green and 51 blue on a 0 to 255 scale.

What is the complementary color of #1B2133?

The complementary color is #332D1B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B2133?

White text. Black text has a contrast ratio of 1.31:1 and white text 16.01:1. WCAG asks for at least 4.5:1 for normal text.

#1B2133 color

#1B2133 rgb(27, 33, 51)

Shades of blue

The hex color #1B2133 is a very dark, desaturated blue.

In the RGB color model it is made of 10.6% red, 12.9% green and 20% blue (27, 33, 51).

Its hue angle is 225°, with 31% saturation and 15% lightness. For print, the CMYK equivalent is 47% cyan, 35% magenta, 0% yellow and 80% black.

The closest named color is Moonless Mystery (#1E2433), a difference of 2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 16.01:1).

#1B2133 color codes

HEX	`#1B2133`
RGB	`rgb(27, 33, 51)`
RGB percent	`rgb(10.6%, 12.9%, 20%)`
HSL	`hsl(225, 31%, 15%)`
HSV / HSB	`hsv(225, 47%, 20%)`
CMYK	`cmyk(47%, 35%, 0%, 80%)`
CIE LAB	`lab(12.98, 3.04, -12.69)`
CIE LCH	`lch(12.98, 13.05, 283.46)`
CIE XYZ	`xyz(1.593, 1.56, 3.348)`
Decimal	`1777971`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B2133, 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 #1B2133	Ratio	AA	AAA	AA large
Sample text	1.31:1	Fail	Fail	Fail
Sample text	16.01:1	Pass	Pass	Pass

#1B2133 as text on	Ratio	AA	AAA	AA large
Sample text	16.01:1	Pass	Pass	Pass
Sample text	1.31:1	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 #1B2133 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b2133; }
.text { color: #1b2133; }
.border { border: 2px solid #1b2133; }
.transparent { background-color: rgb(27 33 51 / 50%); }
.gradient { background: linear-gradient(to right, #1b2133, #211b33); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #1B2133?: #1B2133 is a very dark, desaturated blue, closest to the named color Moonless Mystery. It belongs to the blue family of colors.
What is the RGB value of #1B2133?: The RGB value is 27, 33, 51: 27 red, 33 green and 51 blue on a 0 to 255 scale.
What is the complementary color of #1B2133?: The complementary color is #332D1B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B2133?: White text. Black text has a contrast ratio of 1.31:1 and white text 16.01:1. WCAG asks for at least 4.5:1 for normal text.