#66C12F#66C12F

#66C12F is a light, vivid yellow-green. Relative luminance 0.412; OKLCH L 72.7% C 0.197 H 136.5°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX#66C12F
RGBrgb(102, 193, 47)
HSLhsl(97, 61%, 47%)
HSVhsv(97, 76%, 76%)
CMYKcmyk(47.2%, 0%, 75.6%, 24.3%)
CIE-LABlab(70.29, -51.33, 60.66)
CIE-LCHlch(70.29, 79.46, 130.24°)
OKLaboklab(72.68% -0.1428 0.1356)
OKLCHoklch(72.68% 0.197 136.5)
XYZxyz(25.0618, 41.1683, 9.3145)
Luminance0.4117 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66C12F #8A2FC1
analogous
#AFC12F #66C12F #2FC141
triadic
#66C12F #2F66C1 #C12F66
tetradic
#66C12F #2FAFC1 #8A2FC1 #C1412F
square
#66C12F #2FAFC1 #8A2FC1 #C1412F
split-complementary
#66C12F #412FC1 #C12FAF
monochromatic
#325F17 #4C9023 #66C12F #87D657 #AAE288

Accessibility & contrast

On white

2.27
#66C12F on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.23
#66C12F on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C12F
9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66C12F#FFFFFF#000000##000000
##66C12F1.002.279.239.23
#FFFFFF2.271.0021.0021.00
#0000009.2321.001.001.00
##0000009.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#C8B10C
Deuteranopia (green-blind)
#BCA93E
Tritanopia (blue-blind)
#61BAA5
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #66c12f;
/* rgb */ color: rgb(102, 193, 47);
/* oklch */ color: oklch(72.7% 0.197 136.5);
Tailwind
colors: {
  custom: {
    50: '#9ad472',
    500: '#66c12f',
    950: '#000000',
  },
}
SCSS
$custom: #66c12f;
$custom-light: #9ad472;
$custom-dark: #000000;
JSON
{
  "hex": "#66c12f",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 47
  },
  "hsl": {
    "h": 97.397,
    "s": 60.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.72682,
    "c": 0.1969,
    "h": 136.5
  },
  "luminance": 0.4117
}

Semantic roles & 50–950 ramp

primary
#66C12F
secondary
#AF80CC
accent
#44E4A8
background
#FAFDF7
surface
#F3FAED
border
#CDD3C8
text
#0F1409
muted
#7F837B

Preview Lab

Preview with #66C12F

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

Preview Lab → · Contrast checker → · Palette generator →

#66C12F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva