#639731#639731

#639731 is a mid, vivid yellow-green. Relative luminance 0.250; OKLCH L 61.8% C 0.144 H 132.4°. Best body text is #000000 at 6.00:1 contrast (WCAG AA passes).

Color values

HEX#639731
RGBrgb(99, 151, 49)
HSLhsl(91, 51%, 39%)
HSVhsv(91, 68%, 59%)
CMYKcmyk(34.4%, 0%, 67.5%, 40.8%)
CIE-LABlab(57.08, -34.59, 46.47)
CIE-LCHlch(57.08, 57.93, 126.67°)
OKLaboklab(61.83% -0.0971 0.1062)
OKLCHoklch(61.83% 0.144 132.4)
XYZxyz(16.7663, 25.0070, 6.8486)
Luminance0.2501 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#639731 #653197
analogous
#969731 #639731 #319732
triadic
#639731 #316397 #973163
tetradic
#639731 #319697 #653197 #973231
square
#639731 #319697 #653197 #973231
split-complementary
#639731 #323197 #973196
monochromatic
#263B13 #456922 #639731 #81C243 #A0D171

Accessibility & contrast

On white

3.50
#639731 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.00
#639731 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #639731
6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##639731#FFFFFF#000000##000000
##6397311.003.506.006.00
#FFFFFF3.501.0021.0021.00
#0000006.0021.001.001.00
##0000006.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#9D8C23
Deuteranopia (green-blind)
#968839
Tritanopia (blue-blind)
#649182
Achromatopsia (no color)
#898989

Design tokens & code

CSS
--color: #639731;
/* rgb */ color: rgb(99, 151, 49);
/* oklch */ color: oklch(61.8% 0.144 132.4);
Tailwind
colors: {
  custom: {
    50: '#93b66e',
    500: '#639731',
    950: '#000000',
  },
}
SCSS
$custom: #639731;
$custom-light: #93b66e;
$custom-dark: #000000;
JSON
{
  "hex": "#639731",
  "rgb": {
    "r": 99,
    "g": 151,
    "b": 49
  },
  "hsl": {
    "h": 90.588,
    "s": 51,
    "l": 39.216
  },
  "oklch": {
    "l": 0.61832,
    "c": 0.14388,
    "h": 132.4
  },
  "luminance": 0.25008
}

Semantic roles & 50–950 ramp

primary
#639731
secondary
#936BB9
accent
#4DDA95
background
#F9FBF6
surface
#F2F6EC
border
#CCD0C7
text
#0D1107
muted
#7E807A

Preview Lab

Preview with #639731

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

Preview Lab → · Contrast checker → · Palette generator →

#639731 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva