#63B52B#63B52B

#63B52B is a light, vivid yellow-green. Relative luminance 0.359; OKLCH L 69.5% C 0.186 H 135.7°. Best body text is #000000 at 8.17:1 contrast (WCAG AA passes).

Color values

HEX#63B52B
RGBrgb(99, 181, 43)
HSLhsl(96, 62%, 44%)
HSVhsv(96, 76%, 71%)
CMYKcmyk(45.3%, 0%, 76.2%, 29%)
CIE-LABlab(66.42, -47.79, 58.19)
CIE-LCHlch(66.42, 75.30, 129.40°)
OKLaboklab(69.46% -0.1333 0.1299)
OKLCHoklch(69.46% 0.186 135.7)
XYZxyz(22.1050, 35.8735, 8.0445)
Luminance0.3588 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63B52B #7D2BB5
analogous
#A8B52B #63B52B #2BB538
triadic
#63B52B #2B63B5 #B52B63
tetradic
#63B52B #2BA8B5 #7D2BB5 #B5382B
square
#63B52B #2BA8B5 #7D2BB5 #B5382B
split-complementary
#63B52B #382BB5 #B52BA8
monochromatic
#2D5214 #48841F #63B52B #82D449 #A4E07B

Accessibility & contrast

On white

2.57
#63B52B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.17
#63B52B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B52B
8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63B52B#FFFFFF#000000##000000
##63B52B1.002.578.178.17
#FFFFFF2.571.0021.0021.00
#0000008.1721.001.001.00
##0000008.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#BCA609
Deuteranopia (green-blind)
#B19F3A
Tritanopia (blue-blind)
#60AE9B
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #63b52b;
/* rgb */ color: rgb(99, 181, 43);
/* oklch */ color: oklch(69.5% 0.186 135.7);
Tailwind
colors: {
  custom: {
    50: '#97cc6f',
    500: '#63b52b',
    950: '#000000',
  },
}
SCSS
$custom: #63b52b;
$custom-light: #97cc6f;
$custom-dark: #000000;
JSON
{
  "hex": "#63b52b",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 43
  },
  "hsl": {
    "h": 95.652,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.69461,
    "c": 0.18611,
    "h": 135.7
  },
  "luminance": 0.35875
}

Semantic roles & 50–950 ramp

primary
#63B52B
secondary
#A674C8
accent
#43E5A3
background
#F9FCF7
surface
#F2F9ED
border
#CCD2C8
text
#0E1308
muted
#7E827B

Preview Lab

Preview with #63B52B

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

Preview Lab → · Contrast checker → · Palette generator →

#63B52B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva