What color is #1B153B?

#1B153B is a very dark, desaturated blue, closest to the named color Midnight Monarch. It belongs to the black family of colors.

What is the RGB value of #1B153B?

The RGB value is 27, 21, 59: 27 red, 21 green and 59 blue on a 0 to 255 scale.

What is the complementary color of #1B153B?

The complementary color is #353B15, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B153B?

White text. Black text has a contrast ratio of 1.22:1 and white text 17.26:1. WCAG asks for at least 4.5:1 for normal text.

#1B153B color

#1B153B rgb(27, 21, 59)

Shades of black

The hex color #1B153B is a very dark, desaturated blue.

In the RGB color model it is made of 10.6% red, 8.2% green and 23.1% blue (27, 21, 59).

Its hue angle is 249°, with 48% saturation and 16% lightness. For print, the CMYK equivalent is 54% cyan, 64% magenta, 0% yellow and 77% black.

The closest named color is Midnight Monarch (#1C0F33), a difference of 2.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 17.26:1).

#1B153B color codes

HEX	`#1B153B`
RGB	`rgb(27, 21, 59)`
RGB percent	`rgb(10.6%, 8.2%, 23.1%)`
HSL	`hsl(249, 48%, 16%)`
HSV / HSB	`hsv(249, 64%, 23%)`
CMYK	`cmyk(54%, 64%, 0%, 77%)`
CIE LAB	`lab(9.68, 14.98, -23.66)`
CIE LCH	`lch(9.68, 28, 302.35)`
CIE XYZ	`xyz(1.509, 1.085, 4.267)`
Decimal	`1774907`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B153B, 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 #1B153B	Ratio	AA	AAA	AA large
Sample text	1.22:1	Fail	Fail	Fail
Sample text	17.26:1	Pass	Pass	Pass

#1B153B as text on	Ratio	AA	AAA	AA large
Sample text	17.26:1	Pass	Pass	Pass
Sample text	1.22:1	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 #1B153B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b153b; }
.text { color: #1b153b; }
.border { border: 2px solid #1b153b; }
.transparent { background-color: rgb(27 21 59 / 50%); }
.gradient { background: linear-gradient(to right, #1b153b, #2e153b); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Purple.

Questions

What color is #1B153B?: #1B153B is a very dark, desaturated blue, closest to the named color Midnight Monarch. It belongs to the black family of colors.
What is the RGB value of #1B153B?: The RGB value is 27, 21, 59: 27 red, 21 green and 59 blue on a 0 to 255 scale.
What is the complementary color of #1B153B?: The complementary color is #353B15, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B153B?: White text. Black text has a contrast ratio of 1.22:1 and white text 17.26:1. WCAG asks for at least 4.5:1 for normal text.