What color is #666C6A?

#666C6A is a gray, closest to the named color Shadows. It belongs to the gray family of colors.

What is the RGB value of #666C6A?

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

What is the complementary color of #666C6A?

The complementary color is #6C6668, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666C6A?

White text. Black text has a contrast ratio of 3.92:1 and white text 5.36:1. WCAG asks for at least 4.5:1 for normal text.

#666C6A color

#666C6A rgb(102, 108, 106)

Shades of gray

The hex color #666C6A is a gray.

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

Its hue angle is 160°, with 3% saturation and 41% lightness. For print, the CMYK equivalent is 6% cyan, 0% magenta, 2% yellow and 58% black.

The closest named color is Shadows (#6B6D6A), a difference of 2.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.36:1).

#666C6A color codes

HEX	`#666C6A`
RGB	`rgb(102, 108, 106)`
RGB percent	`rgb(40%, 42.4%, 41.6%)`
HSL	`hsl(160, 3%, 41%)`
HSV / HSB	`hsv(160, 6%, 42%)`
CMYK	`cmyk(6%, 0%, 2%, 58%)`
CIE LAB	`lab(45.07, -2.71, 0.32)`
CIE LCH	`lch(45.07, 2.73, 173.22)`
CIE XYZ	`xyz(13.443, 14.59, 15.741)`
Decimal	`6712426`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666C6A, 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 #666C6A	Ratio	AA	AAA	AA large
Sample text	3.92:1	Fail	Fail	Pass
Sample text	5.36:1	Pass	Fail	Pass

#666C6A as text on	Ratio	AA	AAA	AA large
Sample text	5.36:1	Pass	Fail	Pass
Sample text	3.92:1	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 #666C6A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666c6a; }
.text { color: #666c6a; }
.border { border: 2px solid #666c6a; }
.transparent { background-color: rgb(102 108 106 / 50%); }
.gradient { background: linear-gradient(to right, #666c6a, #666b6c); }

Background

Text color

Border

Similar colors

Questions

What color is #666C6A?: #666C6A is a gray, closest to the named color Shadows. It belongs to the gray family of colors.
What is the RGB value of #666C6A?: The RGB value is 102, 108, 106: 102 red, 108 green and 106 blue on a 0 to 255 scale.
What is the complementary color of #666C6A?: The complementary color is #6C6668, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666C6A?: White text. Black text has a contrast ratio of 3.92:1 and white text 5.36:1. WCAG asks for at least 4.5:1 for normal text.