What color is #666388?

#666388 is a grayish blue, closest to the named color Heron. It belongs to the blue family of colors.

What is the RGB value of #666388?

The RGB value is 102, 99, 136: 102 red, 99 green and 136 blue on a 0 to 255 scale.

What is the complementary color of #666388?

The complementary color is #858863, found by rotating the hue 180° on the color wheel.

Is black or white text better on #666388?

White text. Black text has a contrast ratio of 3.71:1 and white text 5.67:1. WCAG asks for at least 4.5:1 for normal text.

#666388 color

#666388 rgb(102, 99, 136)

Shades of blue

The hex color #666388 is a grayish blue.

In the RGB color model it is made of 40% red, 38.8% green and 53.3% blue (102, 99, 136).

Its hue angle is 245°, with 16% saturation and 46% lightness. For print, the CMYK equivalent is 25% cyan, 27% magenta, 0% yellow and 47% black.

The closest named color is Heron (#6A6887), a difference of 2.6 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.67:1).

#666388 color codes

HEX	`#666388`
RGB	`rgb(102, 99, 136)`
RGB percent	`rgb(40%, 38.8%, 53.3%)`
HSL	`hsl(245, 16%, 46%)`
HSV / HSB	`hsv(245, 27%, 53%)`
CMYK	`cmyk(25%, 27%, 0%, 47%)`
CIE LAB	`lab(43.55, 9.79, -20.03)`
CIE LCH	`lch(43.55, 22.3, 296.05)`
CIE XYZ	`xyz(14.384, 13.526, 25.141)`
Decimal	`6710152`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #666388, 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 #666388	Ratio	AA	AAA	AA large
Sample text	3.71:1	Fail	Fail	Pass
Sample text	5.67:1	Pass	Fail	Pass

#666388 as text on	Ratio	AA	AAA	AA large
Sample text	5.67:1	Pass	Fail	Pass
Sample text	3.71:1	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 #666388 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #666388; }
.text { color: #666388; }
.border { border: 2px solid #666388; }
.transparent { background-color: rgb(102 99 136 / 50%); }
.gradient { background: linear-gradient(to right, #666388, #796388); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #666388?: #666388 is a grayish blue, closest to the named color Heron. It belongs to the blue family of colors.
What is the RGB value of #666388?: The RGB value is 102, 99, 136: 102 red, 99 green and 136 blue on a 0 to 255 scale.
What is the complementary color of #666388?: The complementary color is #858863, found by rotating the hue 180° on the color wheel.
Is black or white text better on #666388?: White text. Black text has a contrast ratio of 3.71:1 and white text 5.67:1. WCAG asks for at least 4.5:1 for normal text.