What color is #666666?

#666666 is a gray, closest to the named color Dim Gray. It belongs to the gray family of colors.

What is the RGB value of #666666?

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

What is the complementary color of #666666?

The complementary color is #666666, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666666?

White text. Black text has a contrast ratio of 3.66:1 and white text 5.74:1. WCAG asks for at least 4.5:1 for normal text.

#666666 color

#666666 rgb(102, 102, 102)

Shades of gray

The hex color #666666 is a gray.

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

Its hue angle is 0°, with 0% saturation and 40% lightness. For print, the CMYK equivalent is 0% cyan, 0% magenta, 0% yellow and 60% black.

The closest named color is Dim Gray (#696969), a difference of 1.1 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.74:1).

#666666 color codes

HEX	`#666666`
RGB	`rgb(102, 102, 102)`
RGB percent	`rgb(40%, 40%, 40%)`
HSL	`hsl(0, 0%, 40%)`
HSV / HSB	`hsv(0, 0%, 40%)`
CMYK	`cmyk(0%, 0%, 0%, 60%)`
CIE LAB	`lab(43.19, 0, 0)`
CIE LCH	`lch(43.19, 0, 158.2)`
CIE XYZ	`xyz(12.629, 13.287, 14.467)`
Decimal	`6710886`
Short hex	`#666`

Color harmonies

Colors that go with #666666, 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 #666666	Ratio	AA	AAA	AA large
Sample text	3.66:1	Fail	Fail	Pass
Sample text	5.74:1	Pass	Fail	Pass

#666666 as text on	Ratio	AA	AAA	AA large
Sample text	5.74:1	Pass	Fail	Pass
Sample text	3.66:1	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 #666666 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666666; }
.text { color: #666666; }
.border { border: 2px solid #666666; }
.transparent { background-color: rgb(102 102 102 / 50%); }
.gradient { background: linear-gradient(to right, #666666, #666666); }

Background

Text color

Border

Similar colors

Questions

What color is #666666?: #666666 is a gray, closest to the named color Dim Gray. It belongs to the gray family of colors.
What is the RGB value of #666666?: The RGB value is 102, 102, 102: 102 red, 102 green and 102 blue on a 0 to 255 scale.
What is the complementary color of #666666?: The complementary color is #666666, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666666?: White text. Black text has a contrast ratio of 3.66:1 and white text 5.74:1. WCAG asks for at least 4.5:1 for normal text.