What color is #666E7F?

#666E7F 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 #666E7F?

The RGB value is 102, 110, 127: 102 red, 110 green and 127 blue on a 0 to 255 scale.

What is the complementary color of #666E7F?

The complementary color is #7F7766, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666E7F?

White text. Black text has a contrast ratio of 4.1:1 and white text 5.12:1. WCAG asks for at least 4.5:1 for normal text.

#666E7F color

#666E7F rgb(102, 110, 127)

Shades of gray

The hex color #666E7F is a grayish blue.

In the RGB color model it is made of 40% red, 43.1% green and 49.8% blue (102, 110, 127).

Its hue angle is 221°, with 11% saturation and 45% lightness. For print, the CMYK equivalent is 20% cyan, 13% magenta, 0% yellow and 50% black.

The closest named color is Ashen Whisper (#646B7A), a difference of 1.4 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.12:1).

#666E7F color codes

HEX	`#666E7F`
RGB	`rgb(102, 110, 127)`
RGB percent	`rgb(40%, 43.1%, 49.8%)`
HSL	`hsl(221, 11%, 45%)`
HSV / HSB	`hsv(221, 20%, 50%)`
CMYK	`cmyk(20%, 13%, 0%, 50%)`
CIE LAB	`lab(46.32, 0.88, -10.41)`
CIE LCH	`lch(46.32, 10.44, 274.81)`
CIE XYZ	`xyz(14.885, 15.509, 22.284)`
Decimal	`6712959`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666E7F, 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 #666E7F	Ratio	AA	AAA	AA large
Sample text	4.1:1	Fail	Fail	Pass
Sample text	5.12:1	Pass	Fail	Pass

#666E7F as text on	Ratio	AA	AAA	AA large
Sample text	5.12:1	Pass	Fail	Pass
Sample text	4.1:1	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 #666E7F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666e7f; }
.text { color: #666e7f; }
.border { border: 2px solid #666e7f; }
.transparent { background-color: rgb(102 110 127 / 50%); }
.gradient { background: linear-gradient(to right, #666e7f, #6a667f); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #666E7F?: #666E7F 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 #666E7F?: The RGB value is 102, 110, 127: 102 red, 110 green and 127 blue on a 0 to 255 scale.
What is the complementary color of #666E7F?: The complementary color is #7F7766, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666E7F?: White text. Black text has a contrast ratio of 4.1:1 and white text 5.12:1. WCAG asks for at least 4.5:1 for normal text.