What color is #183840?

#183840 is a very dark, desaturated cyan, closest to the named color Royal Neptune. It belongs to the gray family of colors.

What is the RGB value of #183840?

The RGB value is 24, 56, 64: 24 red, 56 green and 64 blue on a 0 to 255 scale.

What is the complementary color of #183840?

The complementary color is #402018, found by rotating the hue 180° on the color wheel.

Is black or white text better on #183840?

White text. Black text has a contrast ratio of 1.68:1 and white text 12.51:1. WCAG asks for at least 4.5:1 for normal text.

#183840 color

#183840 rgb(24, 56, 64)

Shades of gray

The hex color #183840 is a very dark, desaturated cyan.

In the RGB color model it is made of 9.4% red, 22% green and 25.1% blue (24, 56, 64).

Its hue angle is 192°, with 45% saturation and 17% lightness. For print, the CMYK equivalent is 63% cyan, 13% magenta, 0% yellow and 75% black.

The closest named color is Royal Neptune (#1C3B42), a difference of 1.1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 12.51:1).

#183840 color codes

HEX	`#183840`
RGB	`rgb(24, 56, 64)`
RGB percent	`rgb(9.4%, 22%, 25.1%)`
HSL	`hsl(192, 45%, 17%)`
HSV / HSB	`hsv(192, 63%, 25%)`
CMYK	`cmyk(63%, 13%, 0%, 75%)`
CIE LAB	`lab(21.55, -9, -8.56)`
CIE LCH	`lch(21.55, 12.42, 223.57)`
CIE XYZ	`xyz(2.716, 3.392, 5.361)`
Decimal	`1587264`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #183840, 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 #183840	Ratio	AA	AAA	AA large
Sample text	1.68:1	Fail	Fail	Fail
Sample text	12.51:1	Pass	Pass	Pass

#183840 as text on	Ratio	AA	AAA	AA large
Sample text	12.51:1	Pass	Pass	Pass
Sample text	1.68:1	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 #183840 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #183840; }
.text { color: #183840; }
.border { border: 2px solid #183840; }
.transparent { background-color: rgb(24 56 64 / 50%); }
.gradient { background: linear-gradient(to right, #183840, #182440); }

Background

Text color

Border

Similar colors

Closest common color name: Gunmetal.

Questions

What color is #183840?: #183840 is a very dark, desaturated cyan, closest to the named color Royal Neptune. It belongs to the gray family of colors.
What is the RGB value of #183840?: The RGB value is 24, 56, 64: 24 red, 56 green and 64 blue on a 0 to 255 scale.
What is the complementary color of #183840?: The complementary color is #402018, found by rotating the hue 180° on the color wheel.
Is black or white text better on #183840?: White text. Black text has a contrast ratio of 1.68:1 and white text 12.51:1. WCAG asks for at least 4.5:1 for normal text.