What color is #183B3B?

#183B3B is a very dark, desaturated cyan, closest to the named color Botanical Night. It belongs to the teal family of colors.

What is the RGB value of #183B3B?

The RGB value is 24, 59, 59: 24 red, 59 green and 59 blue on a 0 to 255 scale.

What is the complementary color of #183B3B?

The complementary color is #3B1818, found by rotating the hue 180° on the color wheel.

Is black or white text better on #183B3B?

White text. Black text has a contrast ratio of 1.73:1 and white text 12.16:1. WCAG asks for at least 4.5:1 for normal text.

#183B3B color

#183B3B rgb(24, 59, 59)

Shades of teal

The hex color #183B3B is a very dark, desaturated cyan.

In the RGB color model it is made of 9.4% red, 23.1% green and 23.1% blue (24, 59, 59).

Its hue angle is 180°, with 42% saturation and 16% lightness. For print, the CMYK equivalent is 59% cyan, 0% magenta, 0% yellow and 77% black.

The closest named color is Botanical Night (#12403C), a difference of 3.6 ΔE, a small difference.

White text is the more readable choice on this background (contrast 12.16:1).

#183B3B color codes

HEX	`#183B3B`
RGB	`rgb(24, 59, 59)`
RGB percent	`rgb(9.4%, 23.1%, 23.1%)`
HSL	`hsl(180, 42%, 16%)`
HSV / HSB	`hsv(180, 59%, 23%)`
CMYK	`cmyk(59%, 0%, 0%, 77%)`
CIE LAB	`lab(22.44, -12.55, -3.87)`
CIE LCH	`lch(22.44, 13.13, 197.12)`
CIE XYZ	`xyz(2.73, 3.638, 4.695)`
Decimal	`1588027`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #183B3B, 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 #183B3B	Ratio	AA	AAA	AA large
Sample text	1.73:1	Fail	Fail	Fail
Sample text	12.16:1	Pass	Pass	Pass

#183B3B as text on	Ratio	AA	AAA	AA large
Sample text	12.16:1	Pass	Pass	Pass
Sample text	1.73:1	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 #183B3B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #183b3b; }
.text { color: #183b3b; }
.border { border: 2px solid #183b3b; }
.transparent { background-color: rgb(24 59 59 / 50%); }
.gradient { background: linear-gradient(to right, #183b3b, #18293b); }

Background

Text color

Border

Similar colors

Questions

What color is #183B3B?: #183B3B is a very dark, desaturated cyan, closest to the named color Botanical Night. It belongs to the teal family of colors.
What is the RGB value of #183B3B?: The RGB value is 24, 59, 59: 24 red, 59 green and 59 blue on a 0 to 255 scale.
What is the complementary color of #183B3B?: The complementary color is #3B1818, found by rotating the hue 180° on the color wheel.
Is black or white text better on #183B3B?: White text. Black text has a contrast ratio of 1.73:1 and white text 12.16:1. WCAG asks for at least 4.5:1 for normal text.