#66FE99#66FE99

#66FE99 is a very light, vivid green. Relative luminance 0.760; OKLCH L 89.1% C 0.190 H 151.5°. Best body text is #000000 at 16.20:1 contrast (WCAG AA passes).

Color values

HEX#66FE99
RGBrgb(102, 254, 153)
HSLhsl(140, 99%, 70%)
HSVhsv(140, 60%, 100%)
CMYKcmyk(59.8%, 0%, 39.8%, 0.4%)
CIE-LABlab(89.86, -61.84, 36.54)
CIE-LCHlch(89.86, 71.83, 149.43°)
OKLaboklab(89.14% -0.1673 0.0907)
OKLCHoklch(89.14% 0.19 151.5)
XYZxyz(46.6675, 76.0037, 42.3417)
Luminance0.7601 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66FE99 #FE66CB
analogous
#7FFE66 #66FE99 #66FEE5
triadic
#66FE99 #9966FE #FE9966
tetradic
#66FE99 #667FFE #FE66CB #FEE566
square
#66FE99 #667FFE #FE66CB #FEE566
split-complementary
#66FE99 #E566FE #FE667F
monochromatic
#02E84F #29FE70 #66FE99 #A3FEC2 #E0FFEA

Accessibility & contrast

On white

1.30
#66FE99 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

16.20
#66FE99 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FE99
16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66FE99#FFFFFF#000000##000000
##66FE991.001.3016.2016.20
#FFFFFF1.301.0021.0021.00
#00000016.2021.001.001.00
##00000016.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFEA92
Deuteranopia (green-blind)
#EBDCA0
Tritanopia (blue-blind)
#34FAE5
Achromatopsia (no color)
#E2E2E2

Design tokens & code

CSS
--color: #66fe99;
/* rgb */ color: rgb(102, 254, 153);
/* oklch */ color: oklch(89.1% 0.190 151.5);
Tailwind
colors: {
  custom: {
    50: '#9fffb8',
    500: '#66fe99',
    950: '#000000',
  },
}
SCSS
$custom: #66fe99;
$custom-light: #9fffb8;
$custom-dark: #000000;
JSON
{
  "hex": "#66fe99",
  "rgb": {
    "r": 102,
    "g": 254,
    "b": 153
  },
  "hsl": {
    "h": 140.132,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.89142,
    "c": 0.19027,
    "h": 151.5
  },
  "luminance": 0.76008
}

Semantic roles & 50–950 ramp

primary
#66FE99
secondary
#D92FA0
accent
#0098E6
background
#FDFFFD
surface
#F7FFF8
border
#D0D7D1
text
#101811
muted
#818681

Preview Lab

Preview with #66FE99

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

Preview Lab → · Contrast checker → · Palette generator →

#66FE99 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva