#66F45B#66F45B

#66F45B is a very light, highly saturated green. Relative luminance 0.683; OKLCH L 85.8% C 0.229 H 142.1°. Best body text is #000000 at 14.66:1 contrast (WCAG AA passes).

Color values

HEX#66F45B
RGBrgb(102, 244, 91)
HSLhsl(116, 87%, 66%)
HSVhsv(116, 63%, 96%)
CMYKcmyk(58.2%, 0%, 62.7%, 4.3%)
CIE-LABlab(86.15, -66.47, 60.59)
CIE-LCHlch(86.15, 89.95, 137.65°)
OKLaboklab(85.84% -0.1811 0.1408)
OKLCHoklch(85.84% 0.229 142.1)
XYZxyz(39.7164, 68.2779, 20.9815)
Luminance0.6828 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66F45B #E95BF4
analogous
#B3F45B #66F45B #5BF49C
triadic
#66F45B #5B66F4 #F45B66
tetradic
#66F45B #5BB3F4 #E95BF4 #F49C5B
square
#66F45B #5BB3F4 #E95BF4 #F49C5B
split-complementary
#66F45B #9C5BF4 #F45BB3
monochromatic
#1BC70D #30F022 #66F45B #9CF894 #D1FCCE

Accessibility & contrast

On white

1.43
#66F45B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.66
#66F45B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F45B
14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66F45B#FFFFFF#000000##000000
##66F45B1.001.4314.6614.66
#FFFFFF1.431.0021.0021.00
#00000014.6621.001.001.00
##00000014.6621.001.001.00

Color blindness preview

Protanopia (red-blind)
#F9DF49
Deuteranopia (green-blind)
#E8D368
Tritanopia (blue-blind)
#4FEDD4
Achromatopsia (no color)
#D7D7D7

Design tokens & code

CSS
--color: #66f45b;
/* rgb */ color: rgb(102, 244, 91);
/* oklch */ color: oklch(85.8% 0.229 142.1);
Tailwind
colors: {
  custom: {
    50: '#9ff98f',
    500: '#66f45b',
    950: '#000000',
  },
}
SCSS
$custom: #66f45b;
$custom-light: #9ff98f;
$custom-dark: #000000;
JSON
{
  "hex": "#66f45b",
  "rgb": {
    "r": 102,
    "g": 244,
    "b": 91
  },
  "hsl": {
    "h": 115.686,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.85841,
    "c": 0.22942,
    "h": 142.1
  },
  "luminance": 0.68281
}

Semantic roles & 50–950 ramp

primary
#66F45B
secondary
#B92FC4
accent
#02E4D4
background
#FDFFFC
surface
#F7FFF4
border
#D0D7CE
text
#10170D
muted
#81857F

Preview Lab

Preview with #66F45B

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

Preview Lab → · Contrast checker → · Palette generator →

#66F45B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva