#66F191#66F191

#66F191 is a very light, vivid green. Relative luminance 0.678; OKLCH L 85.8% C 0.180 H 150.9°. Best body text is #000000 at 14.56:1 contrast (WCAG AA passes).

Color values

HEX#66F191
RGBrgb(102, 241, 145)
HSLhsl(139, 83%, 67%)
HSVhsv(139, 58%, 95%)
CMYKcmyk(57.7%, 0%, 39.8%, 5.5%)
CIE-LABlab(85.89, -58.23, 35.30)
CIE-LCHlch(85.89, 68.10, 148.77°)
OKLaboklab(85.84% -0.1576 0.0876)
OKLCHoklch(85.84% 0.18 150.9)
XYZxyz(42.0425, 67.7758, 37.6490)
Luminance0.6778 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66F191 #F166C6
analogous
#81F166 #66F191 #66F1D7
triadic
#66F191 #9166F1 #F19166
tetradic
#66F191 #6681F1 #F166C6 #F1D766
square
#66F191 #6681F1 #F166C6 #F1D766
split-complementary
#66F191 #D766F1 #F16681
monochromatic
#12CA4B #2EEC69 #66F191 #9EF6B9 #D6FBE2

Accessibility & contrast

On white

1.44
#66F191 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.56
#66F191 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F191
14.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66F191#FFFFFF#000000##000000
##66F1911.001.4414.5614.56
#FFFFFF1.441.0021.0021.00
#00000014.5621.001.001.00
##00000014.5621.001.001.00

Color blindness preview

Protanopia (red-blind)
#F2DF8A
Deuteranopia (green-blind)
#DFD297
Tritanopia (blue-blind)
#3EEDD9
Achromatopsia (no color)
#D7D7D7

Design tokens & code

CSS
--color: #66f191;
/* rgb */ color: rgb(102, 241, 145);
/* oklch */ color: oklch(85.8% 0.180 150.9);
Tailwind
colors: {
  custom: {
    50: '#9df6b2',
    500: '#66f191',
    950: '#000000',
  },
}
SCSS
$custom: #66f191;
$custom-light: #9df6b2;
$custom-dark: #000000;
JSON
{
  "hex": "#66f191",
  "rgb": {
    "r": 102,
    "g": 241,
    "b": 145
  },
  "hsl": {
    "h": 138.561,
    "s": 83.234,
    "l": 67.255
  },
  "oklch": {
    "l": 0.85844,
    "c": 0.18031,
    "h": 150.9
  },
  "luminance": 0.6778
}

Semantic roles & 50–950 ramp

primary
#66F191
secondary
#C7349A
accent
#069CE0
background
#FCFFFD
surface
#F6FFF8
border
#D0D7D1
text
#0F1711
muted
#808581

Preview Lab

Preview with #66F191

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

Preview Lab → · Contrast checker → · Palette generator →

#66F191 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva