What color is #18403B?

#18403B is a very dark, desaturated spring green, closest to the named color Botanical Night. It belongs to the teal family of colors.

What is the RGB value of #18403B?

The RGB value is 24, 64, 59: 24 red, 64 green and 59 blue on a 0 to 255 scale.

What is the complementary color of #18403B?

The complementary color is #40181D, found by rotating the hue 180° on the color wheel.

Is black or white text better on #18403B?

White text. Black text has a contrast ratio of 1.84:1 and white text 11.44:1. WCAG asks for at least 4.5:1 for normal text.

#18403B color

#18403B rgb(24, 64, 59)

Shades of teal

The hex color #18403B is a very dark, desaturated spring green.

In the RGB color model it is made of 9.4% red, 25.1% green and 23.1% blue (24, 64, 59).

Its hue angle is 173°, with 45% saturation and 17% lightness. For print, the CMYK equivalent is 63% cyan, 0% magenta, 8% yellow and 75% black.

The closest named color is Botanical Night (#12403C), a difference of 1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.44:1).

#18403B color codes

HEX	`#18403B`
RGB	`rgb(24, 64, 59)`
RGB percent	`rgb(9.4%, 25.1%, 23.1%)`
HSL	`hsl(173, 45%, 17%)`
HSV / HSB	`hsv(173, 63%, 25%)`
CMYK	`cmyk(63%, 0%, 8%, 75%)`
CIE LAB	`lab(24.25, -15.48, -1.19)`
CIE LCH	`lch(24.25, 15.52, 184.39)`
CIE XYZ	`xyz(2.999, 4.176, 4.785)`
Decimal	`1589307`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #18403B, 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 #18403B	Ratio	AA	AAA	AA large
Sample text	1.84:1	Fail	Fail	Fail
Sample text	11.44:1	Pass	Pass	Pass

#18403B as text on	Ratio	AA	AAA	AA large
Sample text	11.44:1	Pass	Pass	Pass
Sample text	1.84:1	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 #18403B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #18403b; }
.text { color: #18403b; }
.border { border: 2px solid #18403b; }
.transparent { background-color: rgb(24 64 59 / 50%); }
.gradient { background: linear-gradient(to right, #18403b, #183140); }

Background

Text color

Border

Similar colors

Questions

What color is #18403B?: #18403B is a very dark, desaturated spring green, closest to the named color Botanical Night. It belongs to the teal family of colors.
What is the RGB value of #18403B?: The RGB value is 24, 64, 59: 24 red, 64 green and 59 blue on a 0 to 255 scale.
What is the complementary color of #18403B?: The complementary color is #40181D, found by rotating the hue 180° on the color wheel.
Is black or white text better on #18403B?: White text. Black text has a contrast ratio of 1.84:1 and white text 11.44:1. WCAG asks for at least 4.5:1 for normal text.