What color is #666B5E?

#666B5E is a gray, closest to the named color Black Forest. It belongs to the gray family of colors.

What is the RGB value of #666B5E?

The RGB value is 102, 107, 94: 102 red, 107 green and 94 blue on a 0 to 255 scale.

What is the complementary color of #666B5E?

The complementary color is #635E6B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666B5E?

White text. Black text has a contrast ratio of 3.83:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.

#666B5E color

#666B5E rgb(102, 107, 94)

Shades of gray

The hex color #666B5E is a gray.

In the RGB color model it is made of 40% red, 42% green and 36.9% blue (102, 107, 94).

Its hue angle is 83°, with 6% saturation and 39% lightness. For print, the CMYK equivalent is 5% cyan, 0% magenta, 12% yellow and 58% black.

The closest named color is Black Forest (#5E6354), a difference of 3.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.48:1).

#666B5E color codes

HEX	`#666B5E`
RGB	`rgb(102, 107, 94)`
RGB percent	`rgb(40%, 42%, 36.9%)`
HSL	`hsl(83, 6%, 39%)`
HSV / HSB	`hsv(83, 12%, 42%)`
CMYK	`cmyk(5%, 0%, 12%, 58%)`
CIE LAB	`lab(44.44, -4.54, 6.63)`
CIE LCH	`lch(44.44, 8.04, 124.36)`
CIE XYZ	`xyz(12.757, 14.148, 12.646)`
Decimal	`6712158`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666B5E, 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 #666B5E	Ratio	AA	AAA	AA large
Sample text	3.83:1	Fail	Fail	Pass
Sample text	5.48:1	Pass	Fail	Pass

#666B5E as text on	Ratio	AA	AAA	AA large
Sample text	5.48:1	Pass	Fail	Pass
Sample text	3.83:1	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 #666B5E looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666b5e; }
.text { color: #666b5e; }
.border { border: 2px solid #666b5e; }
.transparent { background-color: rgb(102 107 94 / 50%); }
.gradient { background: linear-gradient(to right, #666b5e, #606b5e); }

Background

Text color

Border

Similar colors

Closest common color name: Ebony.

Questions

What color is #666B5E?: #666B5E is a gray, closest to the named color Black Forest. It belongs to the gray family of colors.
What is the RGB value of #666B5E?: The RGB value is 102, 107, 94: 102 red, 107 green and 94 blue on a 0 to 255 scale.
What is the complementary color of #666B5E?: The complementary color is #635E6B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666B5E?: White text. Black text has a contrast ratio of 3.83:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.