#637331#637331

#637331 is a mid, moderate yellow-green. Relative luminance 0.151; OKLCH L 52.7% C 0.093 H 121.0°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#637331
RGB	rgb(99, 115, 49)
HSL	hsl(75, 40%, 32%)
HSV	hsv(75, 57%, 45%)
CMYK	cmyk(13.9%, 0%, 57.4%, 54.9%)
CIE-LAB	lab(45.82, -16.82, 34.01)
CIE-LCH	lch(45.82, 37.94, 116.31°)
OKLab	oklab(52.71% -0.0479 0.0797)
OKLCH	oklch(52.71% 0.093 121)
XYZ	xyz(11.8308, 15.1359, 5.2034)
Luminance	0.1514 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637331 #413173

analogous

#736231 #637331 #427331

triadic

#637331 #316373 #733163

tetradic

#637331 #317362 #413173 #733142

square

#637331 #317362 #413173 #733142

split-complementary

#637331 #314273 #623173

monochromatic

#191D0C #3E481F #637331 #889E43 #A6BC62

Accessibility & contrast

On white

5.21

#637331 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#637331 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #637331

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637331	#FFFFFF	#000000	##FFFFFF
##637331	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A6D2A

Deuteranopia (green-blind)

#786D35

Tritanopia (blue-blind)

#686D64

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #637331;
/* rgb */ color: rgb(99, 115, 49);
/* oklch */ color: oklch(52.7% 0.093 121.0);

Tailwind

colors: {
  custom: {
    50: '#919b6b',
    500: '#637331',
    950: '#000000',
  },
}

SCSS

$custom: #637331;
$custom-light: #919b6b;
$custom-dark: #000000;

JSON

{
  "hex": "#637331",
  "rgb": {
    "r": 99,
    "g": 115,
    "b": 49
  },
  "hsl": {
    "h": 74.545,
    "s": 40.244,
    "l": 32.157
  },
  "oklch": {
    "l": 0.52712,
    "c": 0.09301,
    "h": 121
  },
  "luminance": 0.15136
}

Semantic roles & 50–950 ramp

primary

#637331

secondary

#6D5CA4

accent

#58D075

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0E07

muted

#7E7E7A

Preview Lab

Preview with #637331

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →