#66CE38#66CE38

#66CE38 is a light, highly saturated green. Relative luminance 0.473; OKLCH L 76.0% C 0.207 H 138.0°. Best body text is #000000 at 10.45:1 contrast (WCAG AA passes).

Color values

HEX#66CE38
RGBrgb(102, 206, 56)
HSLhsl(102, 60%, 51%)
HSVhsv(102, 73%, 81%)
CMYKcmyk(50.5%, 0%, 72.8%, 19.2%)
CIE-LABlab(74.35, -55.71, 61.59)
CIE-LCHlch(74.35, 83.05, 132.13°)
OKLaboklab(76.04% -0.154 0.1388)
OKLCHoklch(76.04% 0.207 138)
XYZxyz(28.2636, 47.2508, 11.3716)
Luminance0.4725 (WCAG relative)
Temperaturewarm
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66CE38 #A038CE
analogous
#B1CE38 #66CE38 #38CE55
triadic
#66CE38 #3866CE #CE3866
tetradic
#66CE38 #38B1CE #A038CE #CE5538
square
#66CE38 #38B1CE #A038CE #CE5538
split-complementary
#66CE38 #5538CE #CE38B1
monochromatic
#35701C #4DA128 #66CE38 #8CDA69 #B2E69A

Accessibility & contrast

On white

2.01
#66CE38 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.45
#66CE38 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CE38
10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66CE38#FFFFFF#000000##000000
##66CE381.002.0110.4510.45
#FFFFFF2.011.0021.0021.00
#00000010.4521.001.001.00
##00000010.4521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D4BC1C
Deuteranopia (green-blind)
#C7B447
Tritanopia (blue-blind)
#5EC7B1
Achromatopsia (no color)
#B7B7B7

Design tokens & code

CSS
--color: #66ce38;
/* rgb */ color: rgb(102, 206, 56);
/* oklch */ color: oklch(76.0% 0.207 138.0);
Tailwind
colors: {
  custom: {
    50: '#9bde78',
    500: '#66ce38',
    950: '#000000',
  },
}
SCSS
$custom: #66ce38;
$custom-light: #9bde78;
$custom-dark: #000000;
JSON
{
  "hex": "#66ce38",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 56
  },
  "hsl": {
    "h": 101.6,
    "s": 60.484,
    "l": 51.373
  },
  "oklch": {
    "l": 0.76035,
    "c": 0.20733,
    "h": 138
  },
  "luminance": 0.47253
}

Semantic roles & 50–950 ramp

primary
#66CE38
secondary
#BE90D2
accent
#44E4B3
background
#FAFDF7
surface
#F4FBEE
border
#CED4C9
text
#0F1509
muted
#7F837B

Preview Lab

Preview with #66CE38

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

Preview Lab → · Contrast checker → · Palette generator →

#66CE38 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva