What color is #637D6D?

#637D6D is a grayish green, closest to the named color Ecological. It belongs to the green family of colors.

What is the RGB value of #637D6D?

The RGB value is 99, 125, 109: 99 red, 125 green and 109 blue on a 0 to 255 scale.

What is the complementary color of #637D6D?

The complementary color is #7D6373, found by rotating the hue 180° on the color wheel.

Is black or white text better on #637D6D?

Black text. Black text has a contrast ratio of 4.68:1 and white text 4.48:1. WCAG asks for at least 4.5:1 for normal text.

#637D6D color

#637D6D rgb(99, 125, 109)

Shades of green

The hex color #637D6D is a grayish green.

In the RGB color model it is made of 38.8% red, 49% green and 42.7% blue (99, 125, 109).

Its hue angle is 143°, with 12% saturation and 44% lightness. For print, the CMYK equivalent is 21% cyan, 0% magenta, 13% yellow and 51% black.

The closest named color is Ecological (#677F70), a difference of 1.2 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 4.68:1).

#637D6D color codes

HEX	`#637D6D`
RGB	`rgb(99, 125, 109)`
RGB percent	`rgb(38.8%, 49%, 42.7%)`
HSL	`hsl(143, 12%, 44%)`
HSV / HSB	`hsv(143, 21%, 49%)`
CMYK	`cmyk(21%, 0%, 13%, 51%)`
CIE LAB	`lab(50.01, -12.88, 5.65)`
CIE LCH	`lch(50.01, 14.07, 156.32)`
CIE XYZ	`xyz(15.239, 18.424, 17.218)`
Decimal	`6520173`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #637D6D, 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 #637D6D	Ratio	AA	AAA	AA large
Sample text	4.68:1	Pass	Fail	Pass
Sample text	4.48:1	Fail	Fail	Pass

#637D6D as text on	Ratio	AA	AAA	AA large
Sample text	4.48:1	Fail	Fail	Pass
Sample text	4.68:1	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 #637D6D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #637d6d; }
.text { color: #637d6d; }
.border { border: 2px solid #637d6d; }
.transparent { background-color: rgb(99 125 109 / 50%); }
.gradient { background: linear-gradient(to right, #637d6d, #637d7a); }

Background

Text color

Border

Similar colors

Questions

What color is #637D6D?: #637D6D is a grayish green, closest to the named color Ecological. It belongs to the green family of colors.
What is the RGB value of #637D6D?: The RGB value is 99, 125, 109: 99 red, 125 green and 109 blue on a 0 to 255 scale.
What is the complementary color of #637D6D?: The complementary color is #7D6373, found by rotating the hue 180° on the color wheel.
Is black or white text better on #637D6D?: Black text. Black text has a contrast ratio of 4.68:1 and white text 4.48:1. WCAG asks for at least 4.5:1 for normal text.