What color is #637C64?

#637C64 is a grayish green, closest to the named color Emerald City. It belongs to the green family of colors.

What is the RGB value of #637C64?

The RGB value is 99, 124, 100: 99 red, 124 green and 100 blue on a 0 to 255 scale.

What is the complementary color of #637C64?

The complementary color is #7C637B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #637C64?

Black text. Black text has a contrast ratio of 4.6:1 and white text 4.57:1. WCAG asks for at least 4.5:1 for normal text.

#637C64 color

#637C64 rgb(99, 124, 100)

Shades of green

The hex color #637C64 is a grayish green.

In the RGB color model it is made of 38.8% red, 48.6% green and 39.2% blue (99, 124, 100).

Its hue angle is 122°, with 11% saturation and 44% lightness. For print, the CMYK equivalent is 20% cyan, 0% magenta, 19% yellow and 51% black.

The closest named color is Emerald City (#6A7E5F), a difference of 3.1 ΔE, a small difference.

Black text is the more readable choice on this background (contrast 4.6:1).

#637C64 color codes

HEX	`#637C64`
RGB	`rgb(99, 124, 100)`
RGB percent	`rgb(38.8%, 48.6%, 39.2%)`
HSL	`hsl(122, 11%, 44%)`
HSV / HSB	`hsv(122, 20%, 49%)`
CMYK	`cmyk(20%, 0%, 19%, 51%)`
CIE LAB	`lab(49.48, -14.15, 10.17)`
CIE LCH	`lch(49.48, 17.42, 144.28)`
CIE XYZ	`xyz(14.653, 17.988, 14.754)`
Decimal	`6519908`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #637C64, 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 #637C64	Ratio	AA	AAA	AA large
Sample text	4.6:1	Pass	Fail	Pass
Sample text	4.57:1	Pass	Fail	Pass

#637C64 as text on	Ratio	AA	AAA	AA large
Sample text	4.57:1	Pass	Fail	Pass
Sample text	4.6:1	Pass	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 #637C64 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #637c64; }
.text { color: #637c64; }
.border { border: 2px solid #637c64; }
.transparent { background-color: rgb(99 124 100 / 50%); }
.gradient { background: linear-gradient(to right, #637c64, #637c71); }

Background

Text color

Border

Similar colors

Closest common color name: Smoke.

Questions

What color is #637C64?: #637C64 is a grayish green, closest to the named color Emerald City. It belongs to the green family of colors.
What is the RGB value of #637C64?: The RGB value is 99, 124, 100: 99 red, 124 green and 100 blue on a 0 to 255 scale.
What is the complementary color of #637C64?: The complementary color is #7C637B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #637C64?: Black text. Black text has a contrast ratio of 4.6:1 and white text 4.57:1. WCAG asks for at least 4.5:1 for normal text.