What color is #646F8C?

#646F8C 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 #646F8C?

The RGB value is 100, 111, 140: 100 red, 111 green and 140 blue on a 0 to 255 scale.

What is the complementary color of #646F8C?

The complementary color is #8C8164, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646F8C?

White text. Black text has a contrast ratio of 4.19:1 and white text 5.01:1. WCAG asks for at least 4.5:1 for normal text.

#646F8C color

#646F8C rgb(100, 111, 140)

Shades of blue

The hex color #646F8C is a grayish blue.

In the RGB color model it is made of 39.2% red, 43.5% green and 54.9% blue (100, 111, 140).

Its hue angle is 224°, with 17% saturation and 47% lightness. For print, the CMYK equivalent is 29% cyan, 21% magenta, 0% yellow and 45% black.

The closest named color is Haunt Mist (#5F6D91), a difference of 2.3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.01:1).

#646F8C color codes

HEX	`#646F8C`
RGB	`rgb(100, 111, 140)`
RGB percent	`rgb(39.2%, 43.5%, 54.9%)`
HSL	`hsl(224, 17%, 47%)`
HSV / HSB	`hsv(224, 29%, 55%)`
CMYK	`cmyk(29%, 21%, 0%, 45%)`
CIE LAB	`lab(46.94, 2.9, -17.24)`
CIE LCH	`lch(46.94, 17.48, 279.55)`
CIE XYZ	`xyz(15.672, 15.971, 27.063)`
Decimal	`6582156`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646F8C, 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 #646F8C	Ratio	AA	AAA	AA large
Sample text	4.19:1	Fail	Fail	Pass
Sample text	5.01:1	Pass	Fail	Pass

#646F8C as text on	Ratio	AA	AAA	AA large
Sample text	5.01:1	Pass	Fail	Pass
Sample text	4.19:1	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 #646F8C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646f8c; }
.text { color: #646f8c; }
.border { border: 2px solid #646f8c; }
.transparent { background-color: rgb(100 111 140 / 50%); }
.gradient { background: linear-gradient(to right, #646f8c, #6d648c); }

Background

Text color

Border

Similar colors

Closest common color name: Slate Gray.

Questions

What color is #646F8C?: #646F8C 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 #646F8C?: The RGB value is 100, 111, 140: 100 red, 111 green and 140 blue on a 0 to 255 scale.
What is the complementary color of #646F8C?: The complementary color is #8C8164, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646F8C?: White text. Black text has a contrast ratio of 4.19:1 and white text 5.01:1. WCAG asks for at least 4.5:1 for normal text.