#66D039#66D039

#66D039 is a light, highly saturated green. Relative luminance 0.482; OKLCH L 76.5% C 0.209 H 138.2°. Best body text is #000000 at 10.65:1 contrast (WCAG AA passes).

Color values

HEX#66D039
RGBrgb(102, 208, 57)
HSLhsl(102, 62%, 52%)
HSVhsv(102, 73%, 82%)
CMYKcmyk(51%, 0%, 72.6%, 18.4%)
CIE-LABlab(74.97, -56.38, 61.86)
CIE-LCHlch(74.97, 83.70, 132.35°)
OKLaboklab(76.55% -0.1558 0.1395)
OKLCHoklch(76.55% 0.209 138.2)
XYZxyz(28.7729, 48.2298, 11.6632)
Luminance0.4823 (WCAG relative)
Temperaturewarm
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66D039 #A339D0
analogous
#B2D039 #66D039 #39D057
triadic
#66D039 #3966D0 #D03966
tetradic
#66D039 #39B2D0 #A339D0 #D05739
square
#66D039 #39B2D0 #A339D0 #D05739
split-complementary
#66D039 #5739D0 #D039B2
monochromatic
#36731B #4DA527 #66D039 #8CDC6A #B2E79C

Accessibility & contrast

On white

1.97
#66D039 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.65
#66D039 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D039
10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66D039#FFFFFF#000000##000000
##66D0391.001.9710.6510.65
#FFFFFF1.971.0021.0021.00
#00000010.6521.001.001.00
##00000010.6521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D6BE1D
Deuteranopia (green-blind)
#C9B548
Tritanopia (blue-blind)
#5EC9B3
Achromatopsia (no color)
#B9B9B9

Design tokens & code

CSS
--color: #66d039;
/* rgb */ color: rgb(102, 208, 57);
/* oklch */ color: oklch(76.5% 0.209 138.2);
Tailwind
colors: {
  custom: {
    50: '#9bdf79',
    500: '#66d039',
    950: '#000000',
  },
}
SCSS
$custom: #66d039;
$custom-light: #9bdf79;
$custom-dark: #000000;
JSON
{
  "hex": "#66d039",
  "rgb": {
    "r": 102,
    "g": 208,
    "b": 57
  },
  "hsl": {
    "h": 102.119,
    "s": 61.633,
    "l": 51.961
  },
  "oklch": {
    "l": 0.76547,
    "c": 0.20911,
    "h": 138.2
  },
  "luminance": 0.48232
}

Semantic roles & 50–950 ramp

primary
#66D039
secondary
#C091D3
accent
#43E5B5
background
#FAFDF7
surface
#F4FBEE
border
#CED4C9
text
#0F150A
muted
#7F837C

Preview Lab

Preview with #66D039

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

Preview Lab → · Contrast checker → · Palette generator →

#66D039 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva