What color is #666A6C?

#666A6C is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.

What is the RGB value of #666A6C?

The RGB value is 102, 106, 108: 102 red, 106 green and 108 blue on a 0 to 255 scale.

What is the complementary color of #666A6C?

The complementary color is #6C6866, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666A6C?

White text. Black text has a contrast ratio of 3.84:1 and white text 5.46:1. WCAG asks for at least 4.5:1 for normal text.

#666A6C color

#666A6C rgb(102, 106, 108)

Shades of gray

The hex color #666A6C is a gray.

In the RGB color model it is made of 40% red, 41.6% green and 42.4% blue (102, 106, 108).

Its hue angle is 200°, with 3% saturation and 41% lightness. For print, the CMYK equivalent is 6% cyan, 2% magenta, 0% yellow and 58% black.

The closest named color is Beautiful Darkness (#686D70), a difference of 1.3 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.46:1).

#666A6C color codes

HEX	`#666A6C`
RGB	`rgb(102, 106, 108)`
RGB percent	`rgb(40%, 41.6%, 42.4%)`
HSL	`hsl(200, 3%, 41%)`
HSV / HSB	`hsv(200, 6%, 42%)`
CMYK	`cmyk(6%, 2%, 0%, 58%)`
CIE LAB	`lab(44.54, -1.11, -1.65)`
CIE LCH	`lch(44.54, 1.99, 236.14)`
CIE XYZ	`xyz(13.34, 14.215, 16.226)`
Decimal	`6711916`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666A6C, 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 #666A6C	Ratio	AA	AAA	AA large
Sample text	3.84:1	Fail	Fail	Pass
Sample text	5.46:1	Pass	Fail	Pass

#666A6C as text on	Ratio	AA	AAA	AA large
Sample text	5.46:1	Pass	Fail	Pass
Sample text	3.84:1	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 #666A6C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666a6c; }
.text { color: #666a6c; }
.border { border: 2px solid #666a6c; }
.transparent { background-color: rgb(102 106 108 / 50%); }
.gradient { background: linear-gradient(to right, #666a6c, #66676c); }

Background

Text color

Border

Similar colors

Questions

What color is #666A6C?: #666A6C is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.
What is the RGB value of #666A6C?: The RGB value is 102, 106, 108: 102 red, 106 green and 108 blue on a 0 to 255 scale.
What is the complementary color of #666A6C?: The complementary color is #6C6866, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666A6C?: White text. Black text has a contrast ratio of 3.84:1 and white text 5.46:1. WCAG asks for at least 4.5:1 for normal text.