#66C136#66C136

#66C136 is a light, vivid yellow-green. Relative luminance 0.412; OKLCH L 72.7% C 0.193 H 137.0°. Best body text is #000000 at 9.25:1 contrast (WCAG AA passes).

Color values

HEX#66C136
RGBrgb(102, 193, 54)
HSLhsl(99, 56%, 48%)
HSVhsv(99, 72%, 76%)
CMYKcmyk(47.2%, 0%, 72%, 24.3%)
CIE-LABlab(70.34, -50.87, 58.26)
CIE-LCHlch(70.34, 77.34, 131.12°)
OKLaboklab(72.73% -0.1411 0.1316)
OKLCHoklch(72.73% 0.193 137)
XYZxyz(25.2146, 41.2294, 10.1187)
Luminance0.4123 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66C136 #9136C1
analogous
#ABC136 #66C136 #36C14C
triadic
#66C136 #3666C1 #C13666
tetradic
#66C136 #36ABC1 #9136C1 #C14C36
square
#66C136 #36ABC1 #9136C1 #C14C36
split-complementary
#66C136 #4C36C1 #C136AB
monochromatic
#33611B #4D9129 #66C136 #89D361 #ACE091

Accessibility & contrast

On white

2.27
#66C136 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.25
#66C136 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C136
9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66C136#FFFFFF#000000##000000
##66C1361.002.279.259.25
#FFFFFF2.271.0021.0021.00
#0000009.2521.001.001.00
##0000009.2521.001.001.00

Color blindness preview

Protanopia (red-blind)
#C7B11E
Deuteranopia (green-blind)
#BBA944
Tritanopia (blue-blind)
#61BAA6
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #66c136;
/* rgb */ color: rgb(102, 193, 54);
/* oklch */ color: oklch(72.7% 0.193 137.0);
Tailwind
colors: {
  custom: {
    50: '#99d476',
    500: '#66c136',
    950: '#000000',
  },
}
SCSS
$custom: #66c136;
$custom-light: #99d476;
$custom-dark: #000000;
JSON
{
  "hex": "#66c136",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 54
  },
  "hsl": {
    "h": 99.281,
    "s": 56.275,
    "l": 48.431
  },
  "oklch": {
    "l": 0.72731,
    "c": 0.19291,
    "h": 137
  },
  "luminance": 0.41231
}

Semantic roles & 50–950 ramp

primary
#66C136
secondary
#B488CB
accent
#48E0AB
background
#F9FDF7
surface
#F2FAED
border
#CCD3C8
text
#0F1409
muted
#7E837B

Preview Lab

Preview with #66C136

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

Preview Lab → · Contrast checker → · Palette generator →

#66C136 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva