What color is #636A72?

#636A72 is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.

What is the RGB value of #636A72?

The RGB value is 99, 106, 114: 99 red, 106 green and 114 blue on a 0 to 255 scale.

What is the complementary color of #636A72?

The complementary color is #726B63, found by rotating the hue 180° on the color wheel.

Is black or white text better on #636A72?

White text. Black text has a contrast ratio of 3.84:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.

#636A72 color

#636A72 rgb(99, 106, 114)

Shades of gray

The hex color #636A72 is a gray.

In the RGB color model it is made of 38.8% red, 41.6% green and 44.7% blue (99, 106, 114).

Its hue angle is 212°, with 7% saturation and 42% lightness. For print, the CMYK equivalent is 13% cyan, 7% magenta, 0% yellow and 55% black.

The closest named color is Beautiful Darkness (#686D70), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.48:1).

#636A72 color codes

HEX	`#636A72`
RGB	`rgb(99, 106, 114)`
RGB percent	`rgb(38.8%, 41.6%, 44.7%)`
HSL	`hsl(212, 7%, 42%)`
HSV / HSB	`hsv(212, 13%, 45%)`
CMYK	`cmyk(13%, 7%, 0%, 55%)`
CIE LAB	`lab(44.48, -0.89, -5.38)`
CIE LCH	`lch(44.48, 5.45, 260.64)`
CIE XYZ	`xyz(13.336, 14.175, 17.95)`
Decimal	`6515314`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #636A72, 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 #636A72	Ratio	AA	AAA	AA large
Sample text	3.84:1	Fail	Fail	Pass
Sample text	5.48:1	Pass	Fail	Pass

#636A72 as text on	Ratio	AA	AAA	AA large
Sample text	5.48:1	Pass	Fail	Pass
Sample text	3.84:1	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 #636A72 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #636a72; }
.text { color: #636a72; }
.border { border: 2px solid #636a72; }
.transparent { background-color: rgb(99 106 114 / 50%); }
.gradient { background: linear-gradient(to right, #636a72, #646372); }

Background

Text color

Border

Similar colors

Questions

What color is #636A72?: #636A72 is a gray, closest to the named color Beautiful Darkness. It belongs to the gray family of colors.
What is the RGB value of #636A72?: The RGB value is 99, 106, 114: 99 red, 106 green and 114 blue on a 0 to 255 scale.
What is the complementary color of #636A72?: The complementary color is #726B63, found by rotating the hue 180° on the color wheel.
Is black or white text better on #636A72?: White text. Black text has a contrast ratio of 3.84:1 and white text 5.48:1. WCAG asks for at least 4.5:1 for normal text.