What color is #666B80?

#666B80 is a grayish blue, closest to the named color Ashen Whisper. It belongs to the gray family of colors.

What is the RGB value of #666B80?

The RGB value is 102, 107, 128: 102 red, 107 green and 128 blue on a 0 to 255 scale.

What is the complementary color of #666B80?

The complementary color is #807B66, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666B80?

White text. Black text has a contrast ratio of 3.98:1 and white text 5.28:1. WCAG asks for at least 4.5:1 for normal text.

#666B80 color

#666B80 rgb(102, 107, 128)

Shades of gray

The hex color #666B80 is a grayish blue.

In the RGB color model it is made of 40% red, 42% green and 50.2% blue (102, 107, 128).

Its hue angle is 228°, with 11% saturation and 45% lightness. For print, the CMYK equivalent is 20% cyan, 16% magenta, 0% yellow and 50% black.

The closest named color is Ashen Whisper (#646B7A), a difference of 3.3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.28:1).

#666B80 color codes

HEX	`#666B80`
RGB	`rgb(102, 107, 128)`
RGB percent	`rgb(40%, 42%, 50.2%)`
HSL	`hsl(228, 11%, 45%)`
HSV / HSB	`hsv(228, 20%, 50%)`
CMYK	`cmyk(20%, 16%, 0%, 50%)`
CIE LAB	`lab(45.49, 2.91, -12.26)`
CIE LCH	`lch(45.49, 12.6, 283.37)`
CIE XYZ	`xyz(14.633, 14.898, 22.523)`
Decimal	`6712192`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666B80, 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 #666B80	Ratio	AA	AAA	AA large
Sample text	3.98:1	Fail	Fail	Pass
Sample text	5.28:1	Pass	Fail	Pass

#666B80 as text on	Ratio	AA	AAA	AA large
Sample text	5.28:1	Pass	Fail	Pass
Sample text	3.98:1	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 #666B80 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666b80; }
.text { color: #666b80; }
.border { border: 2px solid #666b80; }
.transparent { background-color: rgb(102 107 128 / 50%); }
.gradient { background: linear-gradient(to right, #666b80, #6e6680); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #666B80?: #666B80 is a grayish blue, closest to the named color Ashen Whisper. It belongs to the gray family of colors.
What is the RGB value of #666B80?: The RGB value is 102, 107, 128: 102 red, 107 green and 128 blue on a 0 to 255 scale.
What is the complementary color of #666B80?: The complementary color is #807B66, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666B80?: White text. Black text has a contrast ratio of 3.98:1 and white text 5.28:1. WCAG asks for at least 4.5:1 for normal text.