#63B31D#63B31D

#63B31D is a light, vivid yellow-green. Relative luminance 0.350; OKLCH L 68.9% C 0.190 H 134.7°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX#63B31D
RGBrgb(99, 179, 29)
HSLhsl(92, 72%, 41%)
HSVhsv(92, 84%, 70%)
CMYKcmyk(44.7%, 0%, 83.8%, 29.8%)
CIE-LABlab(65.73, -47.71, 61.64)
CIE-LCHlch(65.73, 77.95, 127.74°)
OKLaboklab(68.87% -0.1339 0.1351)
OKLCHoklch(68.87% 0.19 134.7)
XYZxyz(21.4870, 34.9803, 6.7818)
Luminance0.3498 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63B31D #6D1DB3
analogous
#AEB31D #63B31D #1DB322
triadic
#63B31D #1D63B3 #B31D63
tetradic
#63B31D #1DAEB3 #6D1DB3 #B3221D
square
#63B31D #1DAEB3 #6D1DB3 #B3221D
split-complementary
#63B31D #221DB3 #B31DAE
monochromatic
#294A0C #467E14 #63B31D #81DD30 #A1E664

Accessibility & contrast

On white

2.63
#63B31D on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.00
#63B31D on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B31D
8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63B31D#FFFFFF#000000##000000
##63B31D1.002.638.008.00
#FFFFFF2.631.0021.0021.00
#0000008.0021.001.001.00
##0000008.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#BAA400
Deuteranopia (green-blind)
#AF9D30
Tritanopia (blue-blind)
#61AC98
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #63b31d;
/* rgb */ color: rgb(99, 179, 29);
/* oklch */ color: oklch(68.9% 0.190 134.7);
Tailwind
colors: {
  custom: {
    50: '#97ca69',
    500: '#63b31d',
    950: '#000000',
  },
}
SCSS
$custom: #63b31d;
$custom-light: #97ca69;
$custom-dark: #000000;
JSON
{
  "hex": "#63b31d",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 29
  },
  "hsl": {
    "h": 92,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.68874,
    "c": 0.1902,
    "h": 134.7
  },
  "luminance": 0.34982
}

Semantic roles & 50–950 ramp

primary
#63B31D
secondary
#9961CB
accent
#39EF9A
background
#F9FCF6
surface
#F2F8EC
border
#CCD1C7
text
#0E1307
muted
#7E827A

Preview Lab

Preview with #63B31D

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

Preview Lab → · Contrast checker → · Palette generator →

#63B31D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva