What color is #1B3147?

#1B3147 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 #1B3147?

The RGB value is 27, 49, 71: 27 red, 49 green and 71 blue on a 0 to 255 scale.

What is the complementary color of #1B3147?

The complementary color is #47311B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B3147?

White text. Black text has a contrast ratio of 1.58:1 and white text 13.32:1. WCAG asks for at least 4.5:1 for normal text.

#1B3147 color

#1B3147 rgb(27, 49, 71)

Shades of blue

The hex color #1B3147 is a very dark, desaturated azure.

In the RGB color model it is made of 10.6% red, 19.2% green and 27.8% blue (27, 49, 71).

Its hue angle is 210°, with 45% saturation and 19% lightness. For print, the CMYK equivalent is 62% cyan, 31% magenta, 0% yellow and 72% black.

The closest named color is Sea of Stars (#0B334D), a difference of 3.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 13.32:1).

#1B3147 color codes

HEX	`#1B3147`
RGB	`rgb(27, 49, 71)`
RGB percent	`rgb(10.6%, 19.2%, 27.8%)`
HSL	`hsl(210, 45%, 19%)`
HSV / HSB	`hsv(210, 62%, 28%)`
CMYK	`cmyk(62%, 31%, 0%, 72%)`
CIE LAB	`lab(19.57, -1.02, -16.33)`
CIE LCH	`lch(19.57, 16.36, 266.43)`
CIE XYZ	`xyz(2.687, 2.884, 6.375)`
Decimal	`1782087`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B3147, 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 #1B3147	Ratio	AA	AAA	AA large
Sample text	1.58:1	Fail	Fail	Fail
Sample text	13.32:1	Pass	Pass	Pass

#1B3147 as text on	Ratio	AA	AAA	AA large
Sample text	13.32:1	Pass	Pass	Pass
Sample text	1.58:1	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 #1B3147 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b3147; }
.text { color: #1b3147; }
.border { border: 2px solid #1b3147; }
.transparent { background-color: rgb(27 49 71 / 50%); }
.gradient { background: linear-gradient(to right, #1b3147, #1b1b47); }

Background

Text color

Border

Similar colors

Questions

What color is #1B3147?: #1B3147 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 #1B3147?: The RGB value is 27, 49, 71: 27 red, 49 green and 71 blue on a 0 to 255 scale.
What is the complementary color of #1B3147?: The complementary color is #47311B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B3147?: White text. Black text has a contrast ratio of 1.58:1 and white text 13.32:1. WCAG asks for at least 4.5:1 for normal text.