What color is #155F40?

#155F40 is a dark, moderate spring green, closest to the named color Jewel. It belongs to the green family of colors.

What is the RGB value of #155F40?

The RGB value is 21, 95, 64: 21 red, 95 green and 64 blue on a 0 to 255 scale.

What is the complementary color of #155F40?

The complementary color is #5F1534, found by rotating the hue 180° on the color wheel.

Is black or white text better on #155F40?

White text. Black text has a contrast ratio of 2.74:1 and white text 7.66:1. WCAG asks for at least 4.5:1 for normal text.

#155F40 color

#155F40 rgb(21, 95, 64)

Shades of green

The hex color #155F40 is a dark, moderate spring green.

In the RGB color model it is made of 8.2% red, 37.3% green and 25.1% blue (21, 95, 64).

Its hue angle is 155°, with 64% saturation and 23% lightness. For print, the CMYK equivalent is 78% cyan, 0% magenta, 33% yellow and 63% black.

The closest named color is Jewel (#136843), a difference of 3.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 7.66:1).

#155F40 color codes

HEX	`#155F40`
RGB	`rgb(21, 95, 64)`
RGB percent	`rgb(8.2%, 37.3%, 25.1%)`
HSL	`hsl(155, 64%, 23%)`
HSV / HSB	`hsv(155, 78%, 37%)`
CMYK	`cmyk(78%, 0%, 33%, 63%)`
CIE LAB	`lab(35.43, -30.33, 11.51)`
CIE LCH	`lch(35.43, 32.44, 159.21)`
CIE XYZ	`xyz(5.326, 8.713, 6.251)`
Decimal	`1400640`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #155F40, 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 #155F40	Ratio	AA	AAA	AA large
Sample text	2.74:1	Fail	Fail	Fail
Sample text	7.66:1	Pass	Pass	Pass

#155F40 as text on	Ratio	AA	AAA	AA large
Sample text	7.66:1	Pass	Pass	Pass
Sample text	2.74:1	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 #155F40 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #155f40; }
.text { color: #155f40; }
.border { border: 2px solid #155f40; }
.transparent { background-color: rgb(21 95 64 / 50%); }
.gradient { background: linear-gradient(to right, #155f40, #15595f); }

Background

Text color

Border

Similar colors

Questions

What color is #155F40?: #155F40 is a dark, moderate spring green, closest to the named color Jewel. It belongs to the green family of colors.
What is the RGB value of #155F40?: The RGB value is 21, 95, 64: 21 red, 95 green and 64 blue on a 0 to 255 scale.
What is the complementary color of #155F40?: The complementary color is #5F1534, found by rotating the hue 180° on the color wheel.
Is black or white text better on #155F40?: White text. Black text has a contrast ratio of 2.74:1 and white text 7.66:1. WCAG asks for at least 4.5:1 for normal text.