#66FC63#66FC63

#66FC63 is a very light, highly saturated green. Relative luminance 0.733; OKLCH L 87.9% C 0.233 H 143.0°. Best body text is #000000 at 15.67:1 contrast (WCAG AA passes).

Color values

HEX#66FC63
RGBrgb(102, 252, 99)
HSLhsl(119, 96%, 69%)
HSVhsv(119, 61%, 99%)
CMYKcmyk(59.5%, 0%, 60.7%, 1.2%)
CIE-LABlab(88.61, -68.45, 60.03)
CIE-LCHlch(88.61, 91.04, 138.75°)
OKLaboklab(87.9% -0.1861 0.1404)
OKLCHoklch(87.9% 0.233 143)
XYZxyz(42.5397, 73.3424, 23.7167)
Luminance0.7335 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66FC63 #F963FC
analogous
#B2FC63 #66FC63 #63FCAD
triadic
#66FC63 #6366FC #FC6366
tetradic
#66FC63 #63B2FC #F963FC #FCAD63
square
#66FC63 #63B2FC #F963FC #FCAD63
split-complementary
#66FC63 #AD63FC #FC63B2
monochromatic
#09E004 #2BFB27 #66FC63 #A1FD9F #DCFEDB

Accessibility & contrast

On white

1.34
#66FC63 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.67
#66FC63 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FC63
15.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66FC63#FFFFFF#000000##000000
##66FC631.001.3415.6715.67
#FFFFFF1.341.0021.0021.00
#00000015.6721.001.001.00
##00000015.6721.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFE652
Deuteranopia (green-blind)
#EEDA70
Tritanopia (blue-blind)
#4BF5DB
Achromatopsia (no color)
#DEDEDE

Design tokens & code

CSS
--color: #66fc63;
/* rgb */ color: rgb(102, 252, 99);
/* oklch */ color: oklch(87.9% 0.233 143.0);
Tailwind
colors: {
  custom: {
    50: '#a0fe94',
    500: '#66fc63',
    950: '#000000',
  },
}
SCSS
$custom: #66fc63;
$custom-light: #a0fe94;
$custom-dark: #000000;
JSON
{
  "hex": "#66fc63",
  "rgb": {
    "r": 102,
    "g": 252,
    "b": 99
  },
  "hsl": {
    "h": 118.824,
    "s": 96.226,
    "l": 68.824
  },
  "oklch": {
    "l": 0.87899,
    "c": 0.23307,
    "h": 143
  },
  "luminance": 0.73346
}

Semantic roles & 50–950 ramp

primary
#66FC63
secondary
#D32DD6
accent
#00E6E1
background
#FDFFFC
surface
#F7FFF5
border
#D0D7CF
text
#10180E
muted
#81867F

Preview Lab

Preview with #66FC63

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

Preview Lab → · Contrast checker → · Palette generator →

#66FC63 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva