#66EF56#66EF56

#66EF56 is a very light, highly saturated green. Relative luminance 0.652; OKLCH L 84.6% C 0.227 H 141.6°. Best body text is #000000 at 14.05:1 contrast (WCAG AA passes).

Color values

HEX#66EF56
RGBrgb(102, 239, 86)
HSLhsl(114, 83%, 64%)
HSVhsv(114, 64%, 94%)
CMYKcmyk(57.3%, 0%, 64%, 6.3%)
CIE-LABlab(84.60, -65.20, 60.93)
CIE-LCHlch(84.60, 89.24, 136.94°)
OKLaboklab(84.55% -0.1779 0.141)
OKLCHoklch(84.55% 0.227 141.6)
XYZxyz(38.0238, 65.2263, 19.3885)
Luminance0.6523 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66EF56 #DF56EF
analogous
#B3EF56 #66EF56 #56EF92
triadic
#66EF56 #5666EF #EF5666
tetradic
#66EF56 #56B3EF #DF56EF #EF9256
square
#66EF56 #56B3EF #DF56EF #EF9256
split-complementary
#66EF56 #9256EF #EF56B3
monochromatic
#23B912 #33EA1E #66EF56 #99F48E #CBFAC6

Accessibility & contrast

On white

1.50
#66EF56 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.05
#66EF56 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EF56
14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66EF56#FFFFFF#000000##000000
##66EF561.001.5014.0514.05
#FFFFFF1.501.0021.0021.00
#00000014.0521.001.001.00
##00000014.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#F5DA43
Deuteranopia (green-blind)
#E3CF63
Tritanopia (blue-blind)
#52E8CF
Achromatopsia (no color)
#D3D3D3

Design tokens & code

CSS
--color: #66ef56;
/* rgb */ color: rgb(102, 239, 86);
/* oklch */ color: oklch(84.6% 0.227 141.6);
Tailwind
colors: {
  custom: {
    50: '#9ef58c',
    500: '#66ef56',
    950: '#000000',
  },
}
SCSS
$custom: #66ef56;
$custom-light: #9ef58c;
$custom-dark: #000000;
JSON
{
  "hex": "#66ef56",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 86
  },
  "hsl": {
    "h": 113.725,
    "s": 82.703,
    "l": 63.725
  },
  "oklch": {
    "l": 0.84553,
    "c": 0.22703,
    "h": 141.6
  },
  "luminance": 0.6523
}

Semantic roles & 50–950 ramp

primary
#66EF56
secondary
#AA31B8
accent
#06DFC8
background
#FDFFFC
surface
#F7FFF4
border
#D0D7CE
text
#10170C
muted
#81857F

Preview Lab

Preview with #66EF56

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

Preview Lab → · Contrast checker → · Palette generator →

#66EF56 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva