What color is #123B43?

#123B43 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 #123B43?

The RGB value is 18, 59, 67: 18 red, 59 green and 67 blue on a 0 to 255 scale.

What is the complementary color of #123B43?

The complementary color is #431A12, found by rotating the hue 180° on the color wheel.

Is black or white text better on #123B43?

White text. Black text has a contrast ratio of 1.73:1 and white text 12.12:1. WCAG asks for at least 4.5:1 for normal text.

#123B43 color

#123B43 rgb(18, 59, 67)

Shades of teal

The hex color #123B43 is a very dark, moderate cyan.

In the RGB color model it is made of 7.1% red, 23.1% green and 26.3% blue (18, 59, 67).

Its hue angle is 190°, with 58% saturation and 17% lightness. For print, the CMYK equivalent is 73% cyan, 12% magenta, 0% yellow and 74% black.

The closest named color is Sunken Harbour (#1C3D44), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 12.12:1).

#123B43 color codes

HEX	`#123B43`
RGB	`rgb(18, 59, 67)`
RGB percent	`rgb(7.1%, 23.1%, 26.3%)`
HSL	`hsl(190, 58%, 17%)`
HSV / HSB	`hsv(190, 73%, 26%)`
CMYK	`cmyk(73%, 12%, 0%, 74%)`
CIE LAB	`lab(22.52, -11.13, -9.13)`
CIE LCH	`lch(22.52, 14.39, 219.36)`
CIE XYZ	`xyz(2.826, 3.661, 5.867)`
Decimal	`1194819`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #123B43, 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 #123B43	Ratio	AA	AAA	AA large
Sample text	1.73:1	Fail	Fail	Fail
Sample text	12.12:1	Pass	Pass	Pass

#123B43 as text on	Ratio	AA	AAA	AA large
Sample text	12.12:1	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 #123B43 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #123b43; }
.text { color: #123b43; }
.border { border: 2px solid #123b43; }
.transparent { background-color: rgb(18 59 67 / 50%); }
.gradient { background: linear-gradient(to right, #123b43, #122243); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Gray.

Questions

What color is #123B43?: #123B43 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 #123B43?: The RGB value is 18, 59, 67: 18 red, 59 green and 67 blue on a 0 to 255 scale.
What is the complementary color of #123B43?: The complementary color is #431A12, found by rotating the hue 180° on the color wheel.
Is black or white text better on #123B43?: White text. Black text has a contrast ratio of 1.73:1 and white text 12.12:1. WCAG asks for at least 4.5:1 for normal text.