What color is #646F83?

#646F83 is a grayish azure, closest to the named color Ashen Whisper. It belongs to the gray family of colors.

What is the RGB value of #646F83?

The RGB value is 100, 111, 131: 100 red, 111 green and 131 blue on a 0 to 255 scale.

What is the complementary color of #646F83?

The complementary color is #837864, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646F83?

White text. Black text has a contrast ratio of 4.14:1 and white text 5.07:1. WCAG asks for at least 4.5:1 for normal text.

#646F83 color

#646F83 rgb(100, 111, 131)

Shades of gray

The hex color #646F83 is a grayish azure.

In the RGB color model it is made of 39.2% red, 43.5% green and 51.4% blue (100, 111, 131).

Its hue angle is 219°, with 13% saturation and 45% lightness. For print, the CMYK equivalent is 24% cyan, 15% magenta, 0% yellow and 49% black.

The closest named color is Ashen Whisper (#646B7A), a difference of 2.6 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.07:1).

#646F83 color codes

HEX	`#646F83`
RGB	`rgb(100, 111, 131)`
RGB percent	`rgb(39.2%, 43.5%, 51.4%)`
HSL	`hsl(219, 13%, 45%)`
HSV / HSB	`hsv(219, 24%, 51%)`
CMYK	`cmyk(24%, 15%, 0%, 49%)`
CIE LAB	`lab(46.6, 0.59, -12.39)`
CIE LCH	`lch(46.6, 12.41, 272.71)`
CIE XYZ	`xyz(15.036, 15.716, 23.71)`
Decimal	`6582147`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646F83, 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 #646F83	Ratio	AA	AAA	AA large
Sample text	4.14:1	Fail	Fail	Pass
Sample text	5.07:1	Pass	Fail	Pass

#646F83 as text on	Ratio	AA	AAA	AA large
Sample text	5.07:1	Pass	Fail	Pass
Sample text	4.14:1	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 #646F83 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646f83; }
.text { color: #646f83; }
.border { border: 2px solid #646f83; }
.transparent { background-color: rgb(100 111 131 / 50%); }
.gradient { background: linear-gradient(to right, #646f83, #696483); }

Background

Text color

Border

Similar colors

Closest common color name: Space Gray.

Questions

What color is #646F83?: #646F83 is a grayish azure, closest to the named color Ashen Whisper. It belongs to the gray family of colors.
What is the RGB value of #646F83?: The RGB value is 100, 111, 131: 100 red, 111 green and 131 blue on a 0 to 255 scale.
What is the complementary color of #646F83?: The complementary color is #837864, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646F83?: White text. Black text has a contrast ratio of 4.14:1 and white text 5.07:1. WCAG asks for at least 4.5:1 for normal text.