#66F99D#66F99D

#66F99D is a very light, vivid green. Relative luminance 0.730; OKLCH L 88.0% C 0.180 H 153.0°. Best body text is #000000 at 15.60:1 contrast (WCAG AA passes).

Color values

HEX#66F99D
RGBrgb(102, 249, 157)
HSLhsl(142, 92%, 69%)
HSVhsv(142, 59%, 98%)
CMYKcmyk(59%, 0%, 36.9%, 2.4%)
CIE-LABlab(88.45, -59.26, 32.69)
CIE-LCHlch(88.45, 67.68, 151.12°)
OKLaboklab(88% -0.1605 0.0817)
OKLCHoklch(88% 0.18 153)
XYZxyz(45.4374, 73.0061, 43.5888)
Luminance0.7301 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66F99D #F966C2
analogous
#79F966 #66F99D #66F9E7
triadic
#66F99D #9D66F9 #F99D66
tetradic
#66F99D #6679F9 #F966C2 #F9E766
square
#66F99D #6679F9 #F966C2 #F9E766
split-complementary
#66F99D #E766F9 #F96679
monochromatic
#09DC58 #2BF777 #66F99D #A1FBC3 #DCFEE8

Accessibility & contrast

On white

1.35
#66F99D on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.60
#66F99D on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F99D
15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66F99D#FFFFFF#000000##000000
##66F99D1.001.3515.6015.60
#FFFFFF1.351.0021.0021.00
#00000015.6021.001.001.00
##00000015.6021.001.001.00

Color blindness preview

Protanopia (red-blind)
#F9E697
Deuteranopia (green-blind)
#E5D8A3
Tritanopia (blue-blind)
#34F6E2
Achromatopsia (no color)
#DEDEDE

Design tokens & code

CSS
--color: #66f99d;
/* rgb */ color: rgb(102, 249, 157);
/* oklch */ color: oklch(88.0% 0.180 153.0);
Tailwind
colors: {
  custom: {
    50: '#9efcba',
    500: '#66f99d',
    950: '#000000',
  },
}
SCSS
$custom: #66f99d;
$custom-light: #9efcba;
$custom-dark: #000000;
JSON
{
  "hex": "#66f99d",
  "rgb": {
    "r": 102,
    "g": 249,
    "b": 157
  },
  "hsl": {
    "h": 142.449,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.88004,
    "c": 0.18012,
    "h": 153
  },
  "luminance": 0.7301
}

Semantic roles & 50–950 ramp

primary
#66F99D
secondary
#D33096
accent
#0090E6
background
#FCFFFD
surface
#F6FFF8
border
#D0D7D1
text
#101812
muted
#808682

Preview Lab

Preview with #66F99D

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

Preview Lab → · Contrast checker → · Palette generator →

#66F99D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva