What color is #646C88?

#646C88 is a grayish blue, closest to the named color Haunt Mist. It belongs to the blue family of colors.

What is the RGB value of #646C88?

The RGB value is 100, 108, 136: 100 red, 108 green and 136 blue on a 0 to 255 scale.

What is the complementary color of #646C88?

The complementary color is #888064, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646C88?

White text. Black text has a contrast ratio of 4.04:1 and white text 5.19:1. WCAG asks for at least 4.5:1 for normal text.

#646C88 color

#646C88 rgb(100, 108, 136)

Shades of blue

The hex color #646C88 is a grayish blue.

In the RGB color model it is made of 39.2% red, 42.4% green and 53.3% blue (100, 108, 136).

Its hue angle is 227°, with 15% saturation and 46% lightness. For print, the CMYK equivalent is 26% cyan, 21% magenta, 0% yellow and 47% black.

The closest named color is Haunt Mist (#5F6D91), a difference of 3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.19:1).

#646C88 color codes

HEX	`#646C88`
RGB	`rgb(100, 108, 136)`
RGB percent	`rgb(39.2%, 42.4%, 53.3%)`
HSL	`hsl(227, 15%, 46%)`
HSV / HSB	`hsv(227, 26%, 53%)`
CMYK	`cmyk(26%, 21%, 0%, 47%)`
CIE LAB	`lab(45.92, 3.66, -16.4)`
CIE LCH	`lch(45.92, 16.81, 282.57)`
CIE XYZ	`xyz(15.061, 15.212, 25.43)`
Decimal	`6581384`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646C88, 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 #646C88	Ratio	AA	AAA	AA large
Sample text	4.04:1	Fail	Fail	Pass
Sample text	5.19:1	Pass	Fail	Pass

#646C88 as text on	Ratio	AA	AAA	AA large
Sample text	5.19:1	Pass	Fail	Pass
Sample text	4.04:1	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 #646C88 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646c88; }
.text { color: #646c88; }
.border { border: 2px solid #646c88; }
.transparent { background-color: rgb(100 108 136 / 50%); }
.gradient { background: linear-gradient(to right, #646c88, #6e6488); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #646C88?: #646C88 is a grayish blue, closest to the named color Haunt Mist. It belongs to the blue family of colors.
What is the RGB value of #646C88?: The RGB value is 100, 108, 136: 100 red, 108 green and 136 blue on a 0 to 255 scale.
What is the complementary color of #646C88?: The complementary color is #888064, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646C88?: White text. Black text has a contrast ratio of 4.04:1 and white text 5.19:1. WCAG asks for at least 4.5:1 for normal text.