What color is #646F89?

#646F89 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 #646F89?

The RGB value is 100, 111, 137: 100 red, 111 green and 137 blue on a 0 to 255 scale.

What is the complementary color of #646F89?

The complementary color is #897E64, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646F89?

White text. Black text has a contrast ratio of 4.18:1 and white text 5.03:1. WCAG asks for at least 4.5:1 for normal text.

#646F89 color

#646F89 rgb(100, 111, 137)

Shades of blue

The hex color #646F89 is a grayish blue.

In the RGB color model it is made of 39.2% red, 43.5% green and 53.7% blue (100, 111, 137).

Its hue angle is 222°, with 16% saturation and 46% lightness. For print, the CMYK equivalent is 27% cyan, 19% magenta, 0% yellow and 46% black.

The closest named color is Haunt Mist (#5F6D91), a difference of 3.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.03:1).

#646F89 color codes

HEX	`#646F89`
RGB	`rgb(100, 111, 137)`
RGB percent	`rgb(39.2%, 43.5%, 53.7%)`
HSL	`hsl(222, 16%, 46%)`
HSV / HSB	`hsv(222, 27%, 54%)`
CMYK	`cmyk(27%, 19%, 0%, 46%)`
CIE LAB	`lab(46.82, 2.12, -15.63)`
CIE LCH	`lch(46.82, 15.77, 277.72)`
CIE XYZ	`xyz(15.454, 15.884, 25.914)`
Decimal	`6582153`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646F89, 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 #646F89	Ratio	AA	AAA	AA large
Sample text	4.18:1	Fail	Fail	Pass
Sample text	5.03:1	Pass	Fail	Pass

#646F89 as text on	Ratio	AA	AAA	AA large
Sample text	5.03:1	Pass	Fail	Pass
Sample text	4.18:1	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 #646F89 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646f89; }
.text { color: #646f89; }
.border { border: 2px solid #646f89; }
.transparent { background-color: rgb(100 111 137 / 50%); }
.gradient { background: linear-gradient(to right, #646f89, #6c6489); }

Background

Text color

Border

Similar colors

Closest common color name: Slate Gray.

Questions

What color is #646F89?: #646F89 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 #646F89?: The RGB value is 100, 111, 137: 100 red, 111 green and 137 blue on a 0 to 255 scale.
What is the complementary color of #646F89?: The complementary color is #897E64, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646F89?: White text. Black text has a contrast ratio of 4.18:1 and white text 5.03:1. WCAG asks for at least 4.5:1 for normal text.