#66ED99#66ED99

#66ED99 is a very light, vivid green. Relative luminance 0.657; OKLCH L 85.0% C 0.168 H 153.5°. Best body text is #000000 at 14.14:1 contrast (WCAG AA passes).

Color values

HEX#66ED99
RGBrgb(102, 237, 153)
HSLhsl(143, 79%, 66%)
HSVhsv(143, 57%, 93%)
CMYKcmyk(57%, 0%, 35.4%, 7.1%)
CIE-LABlab(84.84, -55.29, 29.88)
CIE-LCHlch(84.84, 62.85, 151.61°)
OKLaboklab(85.02% -0.15 0.0749)
OKLCHoklch(85.02% 0.168 153.5)
XYZxyz(41.5102, 65.6892, 40.6226)
Luminance0.6569 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66ED99 #ED66BA
analogous
#77ED66 #66ED99 #66EDDD
triadic
#66ED99 #9966ED #ED9966
tetradic
#66ED99 #6677ED #ED66BA #EDDD66
square
#66ED99 #6677ED #ED66BA #EDDD66
split-complementary
#66ED99 #DD66ED #ED6677
monochromatic
#17C257 #2FE774 #66ED99 #9DF3BE #D4FAE2

Accessibility & contrast

On white

1.49
#66ED99 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.14
#66ED99 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ED99
14.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66ED99#FFFFFF#000000##000000
##66ED991.001.4914.1414.14
#FFFFFF1.491.0021.0021.00
#00000014.1421.001.001.00
##00000014.1421.001.001.00

Color blindness preview

Protanopia (red-blind)
#EDDC93
Deuteranopia (green-blind)
#DBCF9E
Tritanopia (blue-blind)
#3CEAD7
Achromatopsia (no color)
#D4D4D4

Design tokens & code

CSS
--color: #66ed99;
/* rgb */ color: rgb(102, 237, 153);
/* oklch */ color: oklch(85.0% 0.168 153.5);
Tailwind
colors: {
  custom: {
    50: '#9cf4b7',
    500: '#66ed99',
    950: '#000000',
  },
}
SCSS
$custom: #66ed99;
$custom-light: #9cf4b7;
$custom-dark: #000000;
JSON
{
  "hex": "#66ed99",
  "rgb": {
    "r": 102,
    "g": 237,
    "b": 153
  },
  "hsl": {
    "h": 142.667,
    "s": 78.947,
    "l": 66.471
  },
  "oklch": {
    "l": 0.8502,
    "c": 0.16769,
    "h": 153.5
  },
  "luminance": 0.65693
}

Semantic roles & 50–950 ramp

primary
#66ED99
secondary
#C0378C
accent
#0A8CDB
background
#FCFFFD
surface
#F6FEF8
border
#D0D6D1
text
#0F1711
muted
#808581

Preview Lab

Preview with #66ED99

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

Preview Lab → · Contrast checker → · Palette generator →

#66ED99 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva