What color is #1B3348?

#1B3348 is a very dark, desaturated azure, closest to the named color Sea of Stars. It belongs to the blue family of colors.

What is the RGB value of #1B3348?

The RGB value is 27, 51, 72: 27 red, 51 green and 72 blue on a 0 to 255 scale.

What is the complementary color of #1B3348?

The complementary color is #48301B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B3348?

White text. Black text has a contrast ratio of 1.61:1 and white text 13.01:1. WCAG asks for at least 4.5:1 for normal text.

#1B3348 color

#1B3348 rgb(27, 51, 72)

Shades of blue

The hex color #1B3348 is a very dark, desaturated azure.

In the RGB color model it is made of 10.6% red, 20% green and 28.2% blue (27, 51, 72).

Its hue angle is 208°, with 45% saturation and 19% lightness. For print, the CMYK equivalent is 63% cyan, 29% magenta, 0% yellow and 72% black.

The closest named color is Sea of Stars (#0B334D), a difference of 2.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 13.01:1).

#1B3348 color codes

HEX	`#1B3348`
RGB	`rgb(27, 51, 72)`
RGB percent	`rgb(10.6%, 20%, 28.2%)`
HSL	`hsl(208, 45%, 19%)`
HSV / HSB	`hsv(208, 63%, 28%)`
CMYK	`cmyk(63%, 29%, 0%, 72%)`
CIE LAB	`lab(20.32, -2.02, -15.85)`
CIE LCH	`lch(20.32, 15.98, 262.75)`
CIE XYZ	`xyz(2.805, 3.068, 6.574)`
Decimal	`1782600`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B3348, 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 #1B3348	Ratio	AA	AAA	AA large
Sample text	1.61:1	Fail	Fail	Fail
Sample text	13.01:1	Pass	Pass	Pass

#1B3348 as text on	Ratio	AA	AAA	AA large
Sample text	13.01:1	Pass	Pass	Pass
Sample text	1.61:1	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 #1B3348 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b3348; }
.text { color: #1b3348; }
.border { border: 2px solid #1b3348; }
.transparent { background-color: rgb(27 51 72 / 50%); }
.gradient { background: linear-gradient(to right, #1b3348, #1b1c48); }

Background

Text color

Border

Similar colors

Questions

What color is #1B3348?: #1B3348 is a very dark, desaturated azure, closest to the named color Sea of Stars. It belongs to the blue family of colors.
What is the RGB value of #1B3348?: The RGB value is 27, 51, 72: 27 red, 51 green and 72 blue on a 0 to 255 scale.
What is the complementary color of #1B3348?: The complementary color is #48301B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B3348?: White text. Black text has a contrast ratio of 1.61:1 and white text 13.01:1. WCAG asks for at least 4.5:1 for normal text.