#63C917#63C917

#63C917 is a light, highly saturated yellow-green. Relative luminance 0.445; OKLCH L 74.5% C 0.217 H 136.4°. Best body text is #000000 at 9.90:1 contrast (WCAG AA passes).

Color values

HEX#63C917
RGBrgb(99, 201, 23)
HSLhsl(94, 79%, 44%)
HSVhsv(94, 89%, 79%)
CMYKcmyk(50.7%, 0%, 88.6%, 21.2%)
CIE-LABlab(72.55, -56.34, 68.85)
CIE-LCHlch(72.55, 88.96, 129.30°)
OKLaboklab(74.48% -0.1572 0.1496)
OKLCHoklch(74.48% 0.217 136.4)
XYZxyz(26.1861, 44.4859, 8.0172)
Luminance0.4449 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63C917 #7D17C9
analogous
#BCC917 #63C917 #17C924
triadic
#63C917 #1763C9 #C91763
tetradic
#63C917 #17BCC9 #7D17C9 #C92417
square
#63C917 #17BCC9 #7D17C9 #C92417
split-complementary
#63C917 #2417C9 #C917BC
monochromatic
#2D5B0A #489211 #63C917 #82E835 #A4EE6C

Accessibility & contrast

On white

2.12
#63C917 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.90
#63C917 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C917
9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63C917#FFFFFF#000000##000000
##63C9171.002.129.909.90
#FFFFFF2.121.0021.0021.00
#0000009.9021.001.001.00
##0000009.9021.001.001.00

Color blindness preview

Protanopia (red-blind)
#D0B700
Deuteranopia (green-blind)
#C3AF32
Tritanopia (blue-blind)
#5DC1AB
Achromatopsia (no color)
#B2B2B2

Design tokens & code

CSS
--color: #63c917;
/* rgb */ color: rgb(99, 201, 23);
/* oklch */ color: oklch(74.5% 0.217 136.4);
Tailwind
colors: {
  custom: {
    50: '#9ada6a',
    500: '#63c917',
    950: '#000000',
  },
}
SCSS
$custom: #63c917;
$custom-light: #9ada6a;
$custom-dark: #000000;
JSON
{
  "hex": "#63c917",
  "rgb": {
    "r": 99,
    "g": 201,
    "b": 23
  },
  "hsl": {
    "h": 94.382,
    "s": 79.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.74477,
    "c": 0.21703,
    "h": 136.4
  },
  "luminance": 0.44488
}

Semantic roles & 50–950 ramp

primary
#63C917
secondary
#A668D4
accent
#32F6A2
background
#FAFDF6
surface
#F4FBEC
border
#CED4C7
text
#0F1508
muted
#7F837A

Preview Lab

Preview with #63C917

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

Preview Lab → · Contrast checker → · Palette generator →

#63C917 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva