What color is #637A5F?

#637A5F 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 #637A5F?

The RGB value is 99, 122, 95: 99 red, 122 green and 95 blue on a 0 to 255 scale.

What is the complementary color of #637A5F?

The complementary color is #765F7A, found by rotating the hue 180° on the color wheel.

Is black or white text better on #637A5F?

White text. Black text has a contrast ratio of 4.48:1 and white text 4.69:1. WCAG asks for at least 4.5:1 for normal text.

#637A5F color

#637A5F rgb(99, 122, 95)

Shades of green

The hex color #637A5F is a grayish green.

In the RGB color model it is made of 38.8% red, 47.8% green and 37.3% blue (99, 122, 95).

Its hue angle is 111°, with 12% saturation and 43% lightness. For print, the CMYK equivalent is 19% cyan, 0% magenta, 22% yellow and 52% black.

The closest named color is Emerald City (#6A7E5F), a difference of 2.4 ΔE, a small difference.

White text is the more readable choice on this background (contrast 4.69:1).

#637A5F color codes

HEX	`#637A5F`
RGB	`rgb(99, 122, 95)`
RGB percent	`rgb(38.8%, 47.8%, 37.3%)`
HSL	`hsl(111, 12%, 43%)`
HSV / HSB	`hsv(111, 22%, 48%)`
CMYK	`cmyk(19%, 0%, 22%, 52%)`
CIE LAB	`lab(48.76, -14, 12.08)`
CIE LCH	`lch(48.76, 18.49, 139.21)`
CIE XYZ	`xyz(14.17, 17.398, 13.436)`
Decimal	`6519391`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #637A5F, 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 #637A5F	Ratio	AA	AAA	AA large
Sample text	4.48:1	Fail	Fail	Pass
Sample text	4.69:1	Pass	Fail	Pass

#637A5F as text on	Ratio	AA	AAA	AA large
Sample text	4.69:1	Pass	Fail	Pass
Sample text	4.48:1	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 #637A5F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #637a5f; }
.text { color: #637a5f; }
.border { border: 2px solid #637a5f; }
.transparent { background-color: rgb(99 122 95 / 50%); }
.gradient { background: linear-gradient(to right, #637a5f, #5f7a69); }

Background

Text color

Border

Similar colors

Closest common color name: Smoke.

Questions

What color is #637A5F?: #637A5F 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 #637A5F?: The RGB value is 99, 122, 95: 99 red, 122 green and 95 blue on a 0 to 255 scale.
What is the complementary color of #637A5F?: The complementary color is #765F7A, found by rotating the hue 180° on the color wheel.
Is black or white text better on #637A5F?: White text. Black text has a contrast ratio of 4.48:1 and white text 4.69:1. WCAG asks for at least 4.5:1 for normal text.