#66C133#66C133

#66C133 is a light, vivid yellow-green. Relative luminance 0.412; OKLCH L 72.7% C 0.195 H 136.8°. Best body text is #000000 at 9.24:1 contrast (WCAG AA passes).

Color values

HEX#66C133
RGBrgb(102, 193, 51)
HSLhsl(98, 58%, 48%)
HSVhsv(98, 74%, 76%)
CMYKcmyk(47.2%, 0%, 73.6%, 24.3%)
CIE-LABlab(70.32, -51.07, 59.32)
CIE-LCHlch(70.32, 78.28, 130.73°)
OKLaboklab(72.71% -0.1418 0.1334)
OKLCHoklch(72.71% 0.195 136.8)
XYZxyz(25.1463, 41.2021, 9.7591)
Luminance0.4120 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66C133 #8E33C1
analogous
#ADC133 #66C133 #33C147
triadic
#66C133 #3366C1 #C13366
tetradic
#66C133 #33ADC1 #8E33C1 #C14733
square
#66C133 #33ADC1 #8E33C1 #C14733
split-complementary
#66C133 #4733C1 #C133AD
monochromatic
#336019 #4C9126 #66C133 #88D45D #ABE18D

Accessibility & contrast

On white

2.27
#66C133 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.24
#66C133 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C133
9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66C133#FFFFFF#000000##000000
##66C1331.002.279.249.24
#FFFFFF2.271.0021.0021.00
#0000009.2421.001.001.00
##0000009.2421.001.001.00

Color blindness preview

Protanopia (red-blind)
#C8B117
Deuteranopia (green-blind)
#BCA941
Tritanopia (blue-blind)
#61BAA6
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #66c133;
/* rgb */ color: rgb(102, 193, 51);
/* oklch */ color: oklch(72.7% 0.195 136.8);
Tailwind
colors: {
  custom: {
    50: '#99d474',
    500: '#66c133',
    950: '#000000',
  },
}
SCSS
$custom: #66c133;
$custom-light: #99d474;
$custom-dark: #000000;
JSON
{
  "hex": "#66c133",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 51
  },
  "hsl": {
    "h": 98.451,
    "s": 58.197,
    "l": 47.843
  },
  "oklch": {
    "l": 0.72709,
    "c": 0.19467,
    "h": 136.8
  },
  "luminance": 0.41204
}

Semantic roles & 50–950 ramp

primary
#66C133
secondary
#B284CB
accent
#46E1AA
background
#F9FDF7
surface
#F2FAED
border
#CCD3C8
text
#0F1409
muted
#7E837B

Preview Lab

Preview with #66C133

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

Preview Lab → · Contrast checker → · Palette generator →

#66C133 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva