What color is #636C71?

#636C71 is a gray, closest to the named color Batman. It belongs to the gray family of colors.

What is the RGB value of #636C71?

The RGB value is 99, 108, 113: 99 red, 108 green and 113 blue on a 0 to 255 scale.

What is the complementary color of #636C71?

The complementary color is #716863, found by rotating the hue 180° on the color wheel.

Is black or white text better on #636C71?

White text. Black text has a contrast ratio of 3.91:1 and white text 5.37:1. WCAG asks for at least 4.5:1 for normal text.

#636C71 color

#636C71 rgb(99, 108, 113)

Shades of gray

The hex color #636C71 is a gray.

In the RGB color model it is made of 38.8% red, 42.4% green and 44.3% blue (99, 108, 113).

Its hue angle is 201°, with 7% saturation and 42% lightness. For print, the CMYK equivalent is 12% cyan, 4% magenta, 0% yellow and 56% black.

The closest named color is Batman (#656E72), a difference of 0.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 5.37:1).

#636C71 color codes

HEX	`#636C71`
RGB	`rgb(99, 108, 113)`
RGB percent	`rgb(38.8%, 42.4%, 44.3%)`
HSL	`hsl(201, 7%, 42%)`
HSV / HSB	`hsv(201, 12%, 44%)`
CMYK	`cmyk(12%, 4%, 0%, 56%)`
CIE LAB	`lab(45.04, -2.3, -3.96)`
CIE LCH	`lch(45.04, 4.58, 239.82)`
CIE XYZ	`xyz(13.488, 14.57, 17.721)`
Decimal	`6515825`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #636C71, 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 #636C71	Ratio	AA	AAA	AA large
Sample text	3.91:1	Fail	Fail	Pass
Sample text	5.37:1	Pass	Fail	Pass

#636C71 as text on	Ratio	AA	AAA	AA large
Sample text	5.37:1	Pass	Fail	Pass
Sample text	3.91:1	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 #636C71 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #636c71; }
.text { color: #636c71; }
.border { border: 2px solid #636c71; }
.transparent { background-color: rgb(99 108 113 / 50%); }
.gradient { background: linear-gradient(to right, #636c71, #636571); }

Background

Text color

Border

Similar colors

Questions

What color is #636C71?: #636C71 is a gray, closest to the named color Batman. It belongs to the gray family of colors.
What is the RGB value of #636C71?: The RGB value is 99, 108, 113: 99 red, 108 green and 113 blue on a 0 to 255 scale.
What is the complementary color of #636C71?: The complementary color is #716863, found by rotating the hue 180° on the color wheel.
Is black or white text better on #636C71?: White text. Black text has a contrast ratio of 3.91:1 and white text 5.37:1. WCAG asks for at least 4.5:1 for normal text.