What color is #1B2B45?

#1B2B45 is a very dark, desaturated azure, closest to the named color Eternal Darkness. It belongs to the blue family of colors.

What is the RGB value of #1B2B45?

The RGB value is 27, 43, 69: 27 red, 43 green and 69 blue on a 0 to 255 scale.

What is the complementary color of #1B2B45?

The complementary color is #45351B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B2B45?

White text. Black text has a contrast ratio of 1.48:1 and white text 14.21:1. WCAG asks for at least 4.5:1 for normal text.

#1B2B45 color

#1B2B45 rgb(27, 43, 69)

Shades of blue

The hex color #1B2B45 is a very dark, desaturated azure.

In the RGB color model it is made of 10.6% red, 16.9% green and 27.1% blue (27, 43, 69).

Its hue angle is 217°, with 44% saturation and 19% lightness. For print, the CMYK equivalent is 61% cyan, 38% magenta, 0% yellow and 73% black.

The closest named color is Eternal Darkness (#1C2841), a difference of 1.6 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 14.21:1).

#1B2B45 color codes

HEX	`#1B2B45`
RGB	`rgb(27, 43, 69)`
RGB percent	`rgb(10.6%, 16.9%, 27.1%)`
HSL	`hsl(217, 44%, 19%)`
HSV / HSB	`hsv(217, 61%, 27%)`
CMYK	`cmyk(61%, 38%, 0%, 73%)`
CIE LAB	`lab(17.41, 2.45, -18.35)`
CIE LCH	`lch(17.41, 18.51, 277.6)`
CIE XYZ	`xyz(2.39, 2.39, 5.965)`
Decimal	`1780549`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B2B45, 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 #1B2B45	Ratio	AA	AAA	AA large
Sample text	1.48:1	Fail	Fail	Fail
Sample text	14.21:1	Pass	Pass	Pass

#1B2B45 as text on	Ratio	AA	AAA	AA large
Sample text	14.21:1	Pass	Pass	Pass
Sample text	1.48:1	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 #1B2B45 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b2b45; }
.text { color: #1b2b45; }
.border { border: 2px solid #1b2b45; }
.transparent { background-color: rgb(27 43 69 / 50%); }
.gradient { background: linear-gradient(to right, #1b2b45, #201b45); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #1B2B45?: #1B2B45 is a very dark, desaturated azure, closest to the named color Eternal Darkness. It belongs to the blue family of colors.
What is the RGB value of #1B2B45?: The RGB value is 27, 43, 69: 27 red, 43 green and 69 blue on a 0 to 255 scale.
What is the complementary color of #1B2B45?: The complementary color is #45351B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B2B45?: White text. Black text has a contrast ratio of 1.48:1 and white text 14.21:1. WCAG asks for at least 4.5:1 for normal text.