What color is #666A6F?

#666A6F is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.

What is the RGB value of #666A6F?

The RGB value is 102, 106, 111: 102 red, 106 green and 111 blue on a 0 to 255 scale.

What is the complementary color of #666A6F?

The complementary color is #6F6B66, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666A6F?

White text. Black text has a contrast ratio of 3.86:1 and white text 5.45:1. WCAG asks for at least 4.5:1 for normal text.

#666A6F color

#666A6F rgb(102, 106, 111)

Shades of gray

The hex color #666A6F is a gray.

In the RGB color model it is made of 40% red, 41.6% green and 43.5% blue (102, 106, 111).

Its hue angle is 213°, with 4% saturation and 42% lightness. For print, the CMYK equivalent is 8% cyan, 5% magenta, 0% yellow and 56% black.

The closest named color is Beautiful Darkness (#686D70), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.45:1).

#666A6F color codes

HEX	`#666A6F`
RGB	`rgb(102, 106, 111)`
RGB percent	`rgb(40%, 41.6%, 43.5%)`
HSL	`hsl(213, 4%, 42%)`
HSV / HSB	`hsv(213, 8%, 44%)`
CMYK	`cmyk(8%, 5%, 0%, 56%)`
CIE LAB	`lab(44.63, -0.46, -3.33)`
CIE LCH	`lch(44.63, 3.36, 262.19)`
CIE XYZ	`xyz(13.502, 14.28, 17.081)`
Decimal	`6711919`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666A6F, 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 #666A6F	Ratio	AA	AAA	AA large
Sample text	3.86:1	Fail	Fail	Pass
Sample text	5.45:1	Pass	Fail	Pass

#666A6F as text on	Ratio	AA	AAA	AA large
Sample text	5.45:1	Pass	Fail	Pass
Sample text	3.86:1	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 #666A6F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666a6f; }
.text { color: #666a6f; }
.border { border: 2px solid #666a6f; }
.transparent { background-color: rgb(102 106 111 / 50%); }
.gradient { background: linear-gradient(to right, #666a6f, #66666f); }

Background

Text color

Border

Similar colors

Questions

What color is #666A6F?: #666A6F is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.
What is the RGB value of #666A6F?: The RGB value is 102, 106, 111: 102 red, 106 green and 111 blue on a 0 to 255 scale.
What is the complementary color of #666A6F?: The complementary color is #6F6B66, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666A6F?: White text. Black text has a contrast ratio of 3.86:1 and white text 5.45:1. WCAG asks for at least 4.5:1 for normal text.