What color is #666B72?

#666B72 is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.

What is the RGB value of #666B72?

The RGB value is 102, 107, 114: 102 red, 107 green and 114 blue on a 0 to 255 scale.

What is the complementary color of #666B72?

The complementary color is #726D66, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666B72?

White text. Black text has a contrast ratio of 3.91:1 and white text 5.37:1. WCAG asks for at least 4.5:1 for normal text.

#666B72 color

#666B72 rgb(102, 107, 114)

Shades of gray

The hex color #666B72 is a gray.

In the RGB color model it is made of 40% red, 42% green and 44.7% blue (102, 107, 114).

Its hue angle is 215°, with 6% saturation and 42% lightness. For print, the CMYK equivalent is 11% cyan, 6% magenta, 0% yellow and 55% black.

The closest named color is Beautiful Darkness (#686D70), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.37:1).

#666B72 color codes

HEX	`#666B72`
RGB	`rgb(102, 107, 114)`
RGB percent	`rgb(40%, 42%, 44.7%)`
HSL	`hsl(215, 6%, 42%)`
HSV / HSB	`hsv(215, 11%, 45%)`
CMYK	`cmyk(11%, 6%, 0%, 55%)`
CIE LAB	`lab(45.02, -0.38, -4.56)`
CIE LCH	`lch(45.02, 4.58, 265.21)`
CIE XYZ	`xyz(13.774, 14.555, 18)`
Decimal	`6712178`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666B72, 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 #666B72	Ratio	AA	AAA	AA large
Sample text	3.91:1	Fail	Fail	Pass
Sample text	5.37:1	Pass	Fail	Pass

#666B72 as text on	Ratio	AA	AAA	AA large
Sample text	5.37:1	Pass	Fail	Pass
Sample text	3.91:1	Fail	Fail	Pass

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 #666B72 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666b72; }
.text { color: #666b72; }
.border { border: 2px solid #666b72; }
.transparent { background-color: rgb(102 107 114 / 50%); }
.gradient { background: linear-gradient(to right, #666b72, #676672); }

Background

Text color

Border

Similar colors

Questions

What color is #666B72?: #666B72 is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.
What is the RGB value of #666B72?: The RGB value is 102, 107, 114: 102 red, 107 green and 114 blue on a 0 to 255 scale.
What is the complementary color of #666B72?: The complementary color is #726D66, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666B72?: White text. Black text has a contrast ratio of 3.91:1 and white text 5.37:1. WCAG asks for at least 4.5:1 for normal text.