What color is #666C89?

#666C89 is a grayish blue, closest to the named color Dark Prince. It belongs to the blue family of colors.

What is the RGB value of #666C89?

The RGB value is 102, 108, 137: 102 red, 108 green and 137 blue on a 0 to 255 scale.

What is the complementary color of #666C89?

The complementary color is #898366, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666C89?

White text. Black text has a contrast ratio of 4.07:1 and white text 5.16:1. WCAG asks for at least 4.5:1 for normal text.

#666C89 color

#666C89 rgb(102, 108, 137)

Shades of blue

The hex color #666C89 is a grayish blue.

In the RGB color model it is made of 40% red, 42.4% green and 53.7% blue (102, 108, 137).

Its hue angle is 230°, with 15% saturation and 47% lightness. For print, the CMYK equivalent is 26% cyan, 21% magenta, 0% yellow and 46% black.

The closest named color is Dark Prince (#6B6C89), a difference of 2.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.16:1).

#666C89 color codes

HEX	`#666C89`
RGB	`rgb(102, 108, 137)`
RGB percent	`rgb(40%, 42.4%, 53.7%)`
HSL	`hsl(230, 15%, 47%)`
HSV / HSB	`hsv(230, 26%, 54%)`
CMYK	`cmyk(26%, 21%, 0%, 46%)`
CIE LAB	`lab(46.12, 4.58, -16.69)`
CIE LCH	`lch(46.12, 17.3, 285.33)`
CIE XYZ	`xyz(15.356, 15.356, 25.817)`
Decimal	`6712457`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666C89, 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 #666C89	Ratio	AA	AAA	AA large
Sample text	4.07:1	Fail	Fail	Pass
Sample text	5.16:1	Pass	Fail	Pass

#666C89 as text on	Ratio	AA	AAA	AA large
Sample text	5.16:1	Pass	Fail	Pass
Sample text	4.07:1	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 #666C89 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666c89; }
.text { color: #666c89; }
.border { border: 2px solid #666c89; }
.transparent { background-color: rgb(102 108 137 / 50%); }
.gradient { background: linear-gradient(to right, #666c89, #726689); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #666C89?: #666C89 is a grayish blue, closest to the named color Dark Prince. It belongs to the blue family of colors.
What is the RGB value of #666C89?: The RGB value is 102, 108, 137: 102 red, 108 green and 137 blue on a 0 to 255 scale.
What is the complementary color of #666C89?: The complementary color is #898366, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666C89?: White text. Black text has a contrast ratio of 4.07:1 and white text 5.16:1. WCAG asks for at least 4.5:1 for normal text.