What color is #154B51?

#154B51 is a dark, moderate cyan, closest to the named color Sunken Mystery. It belongs to the teal family of colors.

What is the RGB value of #154B51?

The RGB value is 21, 75, 81: 21 red, 75 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #154B51?

The complementary color is #511B15, found by rotating the hue 180° on the color wheel.

Is black or white text better on #154B51?

White text. Black text has a contrast ratio of 2.16:1 and white text 9.74:1. WCAG asks for at least 4.5:1 for normal text.

#154B51 color

#154B51 rgb(21, 75, 81)

Shades of teal

The hex color #154B51 is a dark, moderate cyan.

In the RGB color model it is made of 8.2% red, 29.4% green and 31.8% blue (21, 75, 81).

Its hue angle is 186°, with 59% saturation and 20% lightness. For print, the CMYK equivalent is 74% cyan, 7% magenta, 0% yellow and 68% black.

The closest named color is Sunken Mystery (#23505A), a difference of 3.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 9.74:1).

#154B51 color codes

HEX	`#154B51`
RGB	`rgb(21, 75, 81)`
RGB percent	`rgb(8.2%, 29.4%, 31.8%)`
HSL	`hsl(186, 59%, 20%)`
HSV / HSB	`hsv(186, 74%, 32%)`
CMYK	`cmyk(74%, 7%, 0%, 68%)`
CIE LAB	`lab(28.86, -15.08, -8.7)`
CIE LCH	`lch(28.86, 17.41, 209.98)`
CIE XYZ	`xyz(4.31, 5.785, 8.672)`
Decimal	`1395537`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #154B51, 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 #154B51	Ratio	AA	AAA	AA large
Sample text	2.16:1	Fail	Fail	Fail
Sample text	9.74:1	Pass	Pass	Pass

#154B51 as text on	Ratio	AA	AAA	AA large
Sample text	9.74:1	Pass	Pass	Pass
Sample text	2.16:1	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 #154B51 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #154b51; }
.text { color: #154b51; }
.border { border: 2px solid #154b51; }
.transparent { background-color: rgb(21 75 81 / 50%); }
.gradient { background: linear-gradient(to right, #154b51, #152d51); }

Background

Text color

Border

Similar colors

Questions

What color is #154B51?: #154B51 is a dark, moderate cyan, closest to the named color Sunken Mystery. It belongs to the teal family of colors.
What is the RGB value of #154B51?: The RGB value is 21, 75, 81: 21 red, 75 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #154B51?: The complementary color is #511B15, found by rotating the hue 180° on the color wheel.
Is black or white text better on #154B51?: White text. Black text has a contrast ratio of 2.16:1 and white text 9.74:1. WCAG asks for at least 4.5:1 for normal text.