#63AD31#63AD31

#63AD31 is a light, vivid yellow-green. Relative luminance 0.328; OKLCH L 67.5% C 0.173 H 135.4°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX#63AD31
RGBrgb(99, 173, 49)
HSLhsl(96, 56%, 44%)
HSVhsv(96, 72%, 68%)
CMYKcmyk(42.8%, 0%, 71.7%, 32.2%)
CIE-LABlab(63.97, -44.13, 53.62)
CIE-LCHlch(63.97, 69.45, 129.46°)
OKLaboklab(67.46% -0.123 0.1212)
OKLCHoklch(67.46% 0.173 135.4)
XYZxyz(20.6431, 32.7604, 8.1408)
Luminance0.3276 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63AD31 #7B31AD
analogous
#A1AD31 #63AD31 #31AD3D
triadic
#63AD31 #3163AD #AD3163
tetradic
#63AD31 #31A1AD #7B31AD #AD3D31
square
#63AD31 #31A1AD #7B31AD #AD3D31
split-complementary
#63AD31 #3D31AD #AD31A1
monochromatic
#2C4E16 #487D23 #63AD31 #81CD4E #A3DA7E

Accessibility & contrast

On white

2.78
#63AD31 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.55
#63AD31 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AD31
7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63AD31#FFFFFF#000000##000000
##63AD311.002.787.557.55
#FFFFFF2.781.0021.0021.00
#0000007.5521.001.001.00
##0000007.5521.001.001.00

Color blindness preview

Protanopia (red-blind)
#B39F1C
Deuteranopia (green-blind)
#A9993D
Tritanopia (blue-blind)
#61A695
Achromatopsia (no color)
#9B9B9B

Design tokens & code

CSS
--color: #63ad31;
/* rgb */ color: rgb(99, 173, 49);
/* oklch */ color: oklch(67.5% 0.173 135.4);
Tailwind
colors: {
  custom: {
    50: '#95c671',
    500: '#63ad31',
    950: '#000000',
  },
}
SCSS
$custom: #63ad31;
$custom-light: #95c671;
$custom-dark: #000000;
JSON
{
  "hex": "#63ad31",
  "rgb": {
    "r": 99,
    "g": 173,
    "b": 49
  },
  "hsl": {
    "h": 95.806,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.67458,
    "c": 0.17269,
    "h": 135.4
  },
  "luminance": 0.32762
}

Semantic roles & 50–950 ramp

primary
#63AD31
secondary
#A477C3
accent
#49DFA2
background
#F9FCF7
surface
#F2F8ED
border
#CCD1C8
text
#0E1308
muted
#7E827B

Preview Lab

Preview with #63AD31

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

Preview Lab → · Contrast checker → · Palette generator →

#63AD31 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva