What color is #123C42?

#123C42 is a very dark, moderate cyan, closest to the named color Sunken Harbour. It belongs to the teal family of colors.

What is the RGB value of #123C42?

The RGB value is 18, 60, 66: 18 red, 60 green and 66 blue on a 0 to 255 scale.

What is the complementary color of #123C42?

The complementary color is #421812, found by rotating the hue 180° on the color wheel.

Is black or white text better on #123C42?

White text. Black text has a contrast ratio of 1.75:1 and white text 11.99:1. WCAG asks for at least 4.5:1 for normal text.

#123C42 color

#123C42 rgb(18, 60, 66)

Shades of teal

The hex color #123C42 is a very dark, moderate cyan.

In the RGB color model it is made of 7.1% red, 23.5% green and 25.9% blue (18, 60, 66).

Its hue angle is 188°, with 57% saturation and 16% lightness. For print, the CMYK equivalent is 73% cyan, 9% magenta, 0% yellow and 74% black.

The closest named color is Sunken Harbour (#1C3D44), a difference of 2.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.99:1).

#123C42 color codes

HEX	`#123C42`
RGB	`rgb(18, 60, 66)`
RGB percent	`rgb(7.1%, 23.5%, 25.9%)`
HSL	`hsl(188, 57%, 16%)`
HSV / HSB	`hsv(188, 73%, 26%)`
CMYK	`cmyk(73%, 9%, 0%, 74%)`
CIE LAB	`lab(22.84, -12.1, -7.97)`
CIE LCH	`lch(22.84, 14.49, 213.38)`
CIE XYZ	`xyz(2.848, 3.753, 5.728)`
Decimal	`1195074`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #123C42, 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 #123C42	Ratio	AA	AAA	AA large
Sample text	1.75:1	Fail	Fail	Fail
Sample text	11.99:1	Pass	Pass	Pass

#123C42 as text on	Ratio	AA	AAA	AA large
Sample text	11.99:1	Pass	Pass	Pass
Sample text	1.75:1	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 #123C42 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #123c42; }
.text { color: #123c42; }
.border { border: 2px solid #123c42; }
.transparent { background-color: rgb(18 60 66 / 50%); }
.gradient { background: linear-gradient(to right, #123c42, #122442); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Gray.

Questions

What color is #123C42?: #123C42 is a very dark, moderate cyan, closest to the named color Sunken Harbour. It belongs to the teal family of colors.
What is the RGB value of #123C42?: The RGB value is 18, 60, 66: 18 red, 60 green and 66 blue on a 0 to 255 scale.
What is the complementary color of #123C42?: The complementary color is #421812, found by rotating the hue 180° on the color wheel.
Is black or white text better on #123C42?: White text. Black text has a contrast ratio of 1.75:1 and white text 11.99:1. WCAG asks for at least 4.5:1 for normal text.