#66E589#66E589

#66E589 is a very light, vivid green. Relative luminance 0.607; OKLCH L 82.8% C 0.171 H 150.1°. Best body text is #000000 at 13.13:1 contrast (WCAG AA passes).

Color values

HEX#66E589
RGBrgb(102, 229, 137)
HSLhsl(137, 71%, 65%)
HSVhsv(137, 55%, 90%)
CMYKcmyk(55.5%, 0%, 40.2%, 10.2%)
CIE-LABlab(82.20, -54.89, 34.47)
CIE-LCHlch(82.20, 64.82, 147.87°)
OKLaboklab(82.77% -0.1487 0.0855)
OKLCHoklch(82.77% 0.171 150.1)
XYZxyz(38.0115, 60.6661, 33.3687)
Luminance0.6067 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66E589 #E566C2
analogous
#83E566 #66E589 #66E5C8
triadic
#66E589 #8966E5 #E58966
tetradic
#66E589 #6683E5 #E566C2 #E5C866
square
#66E589 #6683E5 #E566C2 #E5C866
split-complementary
#66E589 #C866E5 #E56683
monochromatic
#1EB247 #32DC61 #66E589 #9AEEB1 #CFF7DA

Accessibility & contrast

On white

1.60
#66E589 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

13.13
#66E589 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E589
13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66E589#FFFFFF#000000##000000
##66E5891.001.6013.1313.13
#FFFFFF1.601.0021.0021.00
#00000013.1321.001.001.00
##00000013.1321.001.001.00

Color blindness preview

Protanopia (red-blind)
#E6D482
Deuteranopia (green-blind)
#D5C88F
Tritanopia (blue-blind)
#46E1CE
Achromatopsia (no color)
#CCCCCC

Design tokens & code

CSS
--color: #66e589;
/* rgb */ color: rgb(102, 229, 137);
/* oklch */ color: oklch(82.8% 0.171 150.1);
Tailwind
colors: {
  custom: {
    50: '#9beeac',
    500: '#66e589',
    950: '#000000',
  },
}
SCSS
$custom: #66e589;
$custom-light: #9beeac;
$custom-dark: #000000;
JSON
{
  "hex": "#66e589",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 137
  },
  "hsl": {
    "h": 136.535,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.82771,
    "c": 0.17147,
    "h": 150.1
  },
  "luminance": 0.6067
}

Semantic roles & 50–950 ramp

primary
#66E589
secondary
#B33C92
accent
#139ED3
background
#FCFFFD
surface
#F5FEF7
border
#CFD6D0
text
#0F1610
muted
#808581

Preview Lab

Preview with #66E589

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

Preview Lab → · Contrast checker → · Palette generator →

#66E589 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva