#66C12C#66C12C

#66C12C is a light, vivid yellow-green. Relative luminance 0.411; OKLCH L 72.7% C 0.198 H 136.3°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX#66C12C
RGBrgb(102, 193, 44)
HSLhsl(97, 63%, 46%)
HSVhsv(97, 77%, 76%)
CMYKcmyk(47.2%, 0%, 77.2%, 24.3%)
CIE-LABlab(70.28, -51.51, 61.61)
CIE-LCHlch(70.28, 80.31, 129.90°)
OKLaboklab(72.66% -0.1434 0.1372)
OKLCHoklch(72.66% 0.198 136.3)
XYZxyz(25.0034, 41.1449, 9.0066)
Luminance0.4115 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66C12C #872CC1
analogous
#B1C12C #66C12C #2CC13C
triadic
#66C12C #2C66C1 #C12C66
tetradic
#66C12C #2CB1C1 #872CC1 #C13C2C
square
#66C12C #2CB1C1 #872CC1 #C13C2C
split-complementary
#66C12C #3C2CC1 #C12CB1
monochromatic
#315D15 #4C8F21 #66C12C #86D853 #A9E384

Accessibility & contrast

On white

2.28
#66C12C on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.23
#66C12C on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C12C
9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66C12C#FFFFFF#000000##000000
##66C12C1.002.289.239.23
#FFFFFF2.281.0021.0021.00
#0000009.2321.001.001.00
##0000009.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#C8B101
Deuteranopia (green-blind)
#BCA93C
Tritanopia (blue-blind)
#62BAA5
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #66c12c;
/* rgb */ color: rgb(102, 193, 44);
/* oklch */ color: oklch(72.7% 0.198 136.3);
Tailwind
colors: {
  custom: {
    50: '#9ad471',
    500: '#66c12c',
    950: '#000000',
  },
}
SCSS
$custom: #66c12c;
$custom-light: #9ad471;
$custom-dark: #000000;
JSON
{
  "hex": "#66c12c",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 44
  },
  "hsl": {
    "h": 96.644,
    "s": 62.869,
    "l": 46.471
  },
  "oklch": {
    "l": 0.72663,
    "c": 0.19846,
    "h": 136.3
  },
  "luminance": 0.41147
}

Semantic roles & 50–950 ramp

primary
#66C12C
secondary
#AD7DCC
accent
#42E6A6
background
#FAFDF7
surface
#F3FAED
border
#CDD3C8
text
#0F1408
muted
#7F837B

Preview Lab

Preview with #66C12C

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

Preview Lab → · Contrast checker → · Palette generator →

#66C12C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva