#637E58 color
The hex color #637E58 is a grayish green.
In the RGB color model it is made of 38.8% red, 49.4% green and 34.5% blue (99, 126, 88).
Its hue angle is 103°, with 18% saturation and 42% lightness. For print, the CMYK equivalent is 21% cyan, 0% magenta, 30% yellow and 51% black.
The closest named color is Emerald City (#6A7E5F), a difference of 2.8 ΔE, a small difference.
Black text is the more readable choice on this background (contrast 4.66:1).
#637E58 color codes
| HEX | #637E58 | |
|---|---|---|
| RGB | rgb(99, 126, 88) | |
| RGB percent | rgb(38.8%, 49.4%, 34.5%) | |
| HSL | hsl(103, 18%, 42%) | |
| HSV / HSB | hsv(103, 30%, 49%) | |
| CMYK | cmyk(21%, 0%, 30%, 51%) | |
| CIE LAB | lab(49.83, -17.41, 17.61) | |
| CIE LCH | lch(49.83, 24.76, 134.67) | |
| CIE XYZ | xyz(14.367, 18.279, 12.002) | |
| Decimal | 6520408 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #637E58, 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 #637E58 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 4.66:1 | Pass | Fail | Pass |
| Sample text | 4.51:1 | Pass | Fail | Pass |
| #637E58 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 4.51:1 | Pass | Fail | Pass |
| Sample text | 4.66:1 | 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 #637E58 looks to people with the most common types of color vision deficiency.
#817856Protanopia
no red cones#7c765aDeuteranopia
no green cones#627b74Tritanopia
no blue cones#767676Achromatopsia
no color vision
CSS examples
.background { background-color: #637e58; }
.text { color: #637e58; }
.border { border: 2px solid #637e58; }
.transparent { background-color: rgb(99 126 88 / 50%); }
.gradient { background: linear-gradient(to right, #637e58, #587e60); }
Similar colors
#6a7e5fEmerald City#648251Kale#628468Clouded Pine#688049Beyond the Pines#53734cIrish Clover#667744Ghoul#6f8d6aKashmir#4f7942Fern Green
Questions
- What color is #637E58?
- #637E58 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 #637E58?
- The RGB value is 99, 126, 88: 99 red, 126 green and 88 blue on a 0 to 255 scale.
- What is the complementary color of #637E58?
- The complementary color is #73587E, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #637E58?
- Black text. Black text has a contrast ratio of 4.66:1 and white text 4.51:1. WCAG asks for at least 4.5:1 for normal text.