#63B33A#63B33A

#63B33A is a light, vivid yellow-green. Relative luminance 0.352; OKLCH L 69.1% C 0.174 H 136.9°. Best body text is #000000 at 8.04:1 contrast (WCAG AA passes).

Color values

HEX#63B33A
RGBrgb(99, 179, 58)
HSLhsl(100, 51%, 46%)
HSVhsv(100, 68%, 70%)
CMYKcmyk(44.7%, 0%, 67.6%, 29.8%)
CIE-LABlab(65.90, -45.90, 52.09)
CIE-LCHlch(65.90, 69.42, 131.39°)
OKLaboklab(69.07% -0.1272 0.1192)
OKLCHoklch(69.07% 0.174 136.9)
XYZxyz(22.0288, 35.1970, 9.6351)
Luminance0.3520 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63B33A #8A3AB3
analogous
#A0B33A #63B33A #3AB34D
triadic
#63B33A #3A63B3 #B33A63
tetradic
#63B33A #3AA0B3 #8A3AB3 #B34D3A
square
#63B33A #3AA0B3 #8A3AB3 #B34D3A
split-complementary
#63B33A #4D3AB3 #B33AA0
monochromatic
#30571C #49852B #63B33A #84CB5F #A7DA8D

Accessibility & contrast

On white

2.61
#63B33A on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.04
#63B33A on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B33A
8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63B33A#FFFFFF#000000##000000
##63B33A1.002.618.048.04
#FFFFFF2.611.0021.0021.00
#0000008.0421.001.001.00
##0000008.0421.001.001.00

Color blindness preview

Protanopia (red-blind)
#B9A429
Deuteranopia (green-blind)
#AE9E45
Tritanopia (blue-blind)
#5FAD9A
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #63b33a;
/* rgb */ color: rgb(99, 179, 58);
/* oklch */ color: oklch(69.1% 0.174 136.9);
Tailwind
colors: {
  custom: {
    50: '#96ca76',
    500: '#63b33a',
    950: '#000000',
  },
}
SCSS
$custom: #63b33a;
$custom-light: #96ca76;
$custom-dark: #000000;
JSON
{
  "hex": "#63b33a",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 58
  },
  "hsl": {
    "h": 99.669,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.69066,
    "c": 0.17427,
    "h": 136.9
  },
  "luminance": 0.35198
}

Semantic roles & 50–950 ramp

primary
#63B33A
secondary
#AF84C5
accent
#4DDBAB
background
#F9FCF7
surface
#F2F8ED
border
#CCD1C8
text
#0E1309
muted
#7E827B

Preview Lab

Preview with #63B33A

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

Preview Lab → · Contrast checker → · Palette generator →

#63B33A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva