What color is #1B3739?

#1B3739 is a very dark, desaturated cyan, closest to the named color Elite Teal. It belongs to the gray family of colors.

What is the RGB value of #1B3739?

The RGB value is 27, 55, 57: 27 red, 55 green and 57 blue on a 0 to 255 scale.

What is the complementary color of #1B3739?

The complementary color is #391D1B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #1B3739?

White text. Black text has a contrast ratio of 1.65:1 and white text 12.71:1. WCAG asks for at least 4.5:1 for normal text.

#1B3739 color

#1B3739 rgb(27, 55, 57)

Shades of gray

The hex color #1B3739 is a very dark, desaturated cyan.

In the RGB color model it is made of 10.6% red, 21.6% green and 22.4% blue (27, 55, 57).

Its hue angle is 184°, with 36% saturation and 16% lightness. For print, the CMYK equivalent is 53% cyan, 4% magenta, 0% yellow and 78% black.

The closest named color is Elite Teal (#133337), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 12.71:1).

#1B3739 color codes

HEX	`#1B3739`
RGB	`rgb(27, 55, 57)`
RGB percent	`rgb(10.6%, 21.6%, 22.4%)`
HSL	`hsl(184, 36%, 16%)`
HSV / HSB	`hsv(184, 53%, 22%)`
CMYK	`cmyk(53%, 4%, 0%, 78%)`
CIE LAB	`lab(21.06, -9.93, -4.55)`
CIE LCH	`lch(21.06, 10.92, 204.64)`
CIE XYZ	`xyz(2.556, 3.261, 4.365)`
Decimal	`1783609`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #1B3739, 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 #1B3739	Ratio	AA	AAA	AA large
Sample text	1.65:1	Fail	Fail	Fail
Sample text	12.71:1	Pass	Pass	Pass

#1B3739 as text on	Ratio	AA	AAA	AA large
Sample text	12.71:1	Pass	Pass	Pass
Sample text	1.65:1	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 #1B3739 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #1b3739; }
.text { color: #1b3739; }
.border { border: 2px solid #1b3739; }
.transparent { background-color: rgb(27 55 57 / 50%); }
.gradient { background: linear-gradient(to right, #1b3739, #1b2839); }

Background

Text color

Border

Similar colors

Closest common color name: Gunmetal.

Questions

What color is #1B3739?: #1B3739 is a very dark, desaturated cyan, closest to the named color Elite Teal. It belongs to the gray family of colors.
What is the RGB value of #1B3739?: The RGB value is 27, 55, 57: 27 red, 55 green and 57 blue on a 0 to 255 scale.
What is the complementary color of #1B3739?: The complementary color is #391D1B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #1B3739?: White text. Black text has a contrast ratio of 1.65:1 and white text 12.71:1. WCAG asks for at least 4.5:1 for normal text.