What color is #1B2740?

#1B2740 is a very dark, desaturated blue, closest to the named color Eternal Darkness. It belongs to the blue family of colors.

What is the RGB value of #1B2740?

The RGB value is 27, 39, 64: 27 red, 39 green and 64 blue on a 0 to 255 scale.

What is the complementary color of #1B2740?

The complementary color is #40341B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B2740?

White text. Black text has a contrast ratio of 1.41:1 and white text 14.88:1. WCAG asks for at least 4.5:1 for normal text.

#1B2740 color

#1B2740 rgb(27, 39, 64)

Shades of blue

The hex color #1B2740 is a very dark, desaturated blue.

In the RGB color model it is made of 10.6% red, 15.3% green and 25.1% blue (27, 39, 64).

Its hue angle is 221°, with 41% saturation and 18% lightness. For print, the CMYK equivalent is 58% cyan, 39% magenta, 0% yellow and 75% black.

The closest named color is Eternal Darkness (#1C2841), a difference of 0.3 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 14.88:1).

#1B2740 color codes

HEX	`#1B2740`
RGB	`rgb(27, 39, 64)`
RGB percent	`rgb(10.6%, 15.3%, 25.1%)`
HSL	`hsl(221, 41%, 18%)`
HSV / HSB	`hsv(221, 58%, 25%)`
CMYK	`cmyk(58%, 39%, 0%, 75%)`
CIE LAB	`lab(15.77, 3.43, -17.49)`
CIE LCH	`lch(15.77, 17.82, 281.09)`
CIE XYZ	`xyz(2.103, 2.054, 5.135)`
Decimal	`1779520`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B2740, 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 #1B2740	Ratio	AA	AAA	AA large
Sample text	1.41:1	Fail	Fail	Fail
Sample text	14.88:1	Pass	Pass	Pass

#1B2740 as text on	Ratio	AA	AAA	AA large
Sample text	14.88:1	Pass	Pass	Pass
Sample text	1.41:1	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 #1B2740 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b2740; }
.text { color: #1b2740; }
.border { border: 2px solid #1b2740; }
.transparent { background-color: rgb(27 39 64 / 50%); }
.gradient { background: linear-gradient(to right, #1b2740, #211b40); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #1B2740?: #1B2740 is a very dark, desaturated blue, closest to the named color Eternal Darkness. It belongs to the blue family of colors.
What is the RGB value of #1B2740?: The RGB value is 27, 39, 64: 27 red, 39 green and 64 blue on a 0 to 255 scale.
What is the complementary color of #1B2740?: The complementary color is #40341B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B2740?: White text. Black text has a contrast ratio of 1.41:1 and white text 14.88:1. WCAG asks for at least 4.5:1 for normal text.