#66EC5F#66EC5F

#66EC5F is a very light, highly saturated green. Relative luminance 0.636; OKLCH L 83.9% C 0.217 H 142.5°. Best body text is #000000 at 13.73:1 contrast (WCAG AA passes).

Color values

HEX#66EC5F
RGBrgb(102, 236, 95)
HSLhsl(117, 79%, 65%)
HSVhsv(117, 60%, 93%)
CMYKcmyk(56.8%, 0%, 59.7%, 7.5%)
CIE-LABlab(83.78, -63.23, 56.24)
CIE-LCHlch(83.78, 84.62, 138.35°)
OKLaboklab(83.9% -0.1721 0.1319)
OKLCHoklch(83.9% 0.217 142.5)
XYZxyz(37.5385, 63.6386, 21.1295)
Luminance0.6364 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66EC5F #E55FEC
analogous
#ADEC5F #66EC5F #5FEC9E
triadic
#66EC5F #5F66EC #EC5F66
tetradic
#66EC5F #5FADEC #E55FEC #EC9E5F
square
#66EC5F #5FADEC #E55FEC #EC9E5F
split-complementary
#66EC5F #9E5FEC #EC5FAD
monochromatic
#1EBA16 #32E628 #66EC5F #9AF296 #CFF9CC

Accessibility & contrast

On white

1.53
#66EC5F on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

13.73
#66EC5F on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC5F
13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66EC5F#FFFFFF#000000##000000
##66EC5F1.001.5313.7313.73
#FFFFFF1.531.0021.0021.00
#00000013.7321.001.001.00
##00000013.7321.001.001.00

Color blindness preview

Protanopia (red-blind)
#F1D850
Deuteranopia (green-blind)
#E0CC6A
Tritanopia (blue-blind)
#51E5CE
Achromatopsia (no color)
#D1D1D1

Design tokens & code

CSS
--color: #66ec5f;
/* rgb */ color: rgb(102, 236, 95);
/* oklch */ color: oklch(83.9% 0.217 142.5);
Tailwind
colors: {
  custom: {
    50: '#9ef391',
    500: '#66ec5f',
    950: '#000000',
  },
}
SCSS
$custom: #66ec5f;
$custom-light: #9ef391;
$custom-dark: #000000;
JSON
{
  "hex": "#66ec5f",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 95
  },
  "hsl": {
    "h": 117.021,
    "s": 78.771,
    "l": 64.902
  },
  "oklch": {
    "l": 0.839,
    "c": 0.21684,
    "h": 142.5
  },
  "luminance": 0.63642
}

Semantic roles & 50–950 ramp

primary
#66EC5F
secondary
#B336BA
accent
#0ADBD1
background
#FCFFFC
surface
#F6FEF4
border
#D0D6CE
text
#10170D
muted
#80857F

Preview Lab

Preview with #66EC5F

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

Preview Lab → · Contrast checker → · Palette generator →

#66EC5F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva