#66E559#66E559

#66E559 is a very light, highly saturated green. Relative luminance 0.596; OKLCH L 82.1% C 0.213 H 141.8°. Best body text is #000000 at 12.92:1 contrast (WCAG AA passes).

Color values

HEX#66E559
RGBrgb(102, 229, 89)
HSLhsl(114, 73%, 62%)
HSVhsv(114, 61%, 90%)
CMYKcmyk(55.5%, 0%, 61.1%, 10.2%)
CIE-LABlab(81.61, -61.33, 56.36)
CIE-LCHlch(81.61, 83.29, 137.42°)
OKLaboklab(82.1% -0.1673 0.1316)
OKLCHoklch(82.1% 0.213 141.8)
XYZxyz(35.3002, 59.5816, 19.0894)
Luminance0.5958 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66E559 #D859E5
analogous
#ACE559 #66E559 #59E592
triadic
#66E559 #5966E5 #E55966
tetradic
#66E559 #59ACE5 #D859E5 #E59259
square
#66E559 #59ACE5 #D859E5 #E59259
split-complementary
#66E559 #9259E5 #E559AC
monochromatic
#28A91A #35DD24 #66E559 #97ED8E #C8F6C3

Accessibility & contrast

On white

1.63
#66E559 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.92
#66E559 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E559
12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66E559#FFFFFF#000000##000000
##66E5591.001.6312.9212.92
#FFFFFF1.631.0021.0021.00
#00000012.9221.001.001.00
##00000012.9221.001.001.00

Color blindness preview

Protanopia (red-blind)
#EAD249
Deuteranopia (green-blind)
#DAC765
Tritanopia (blue-blind)
#54DEC7
Achromatopsia (no color)
#CBCBCB

Design tokens & code

CSS
--color: #66e559;
/* rgb */ color: rgb(102, 229, 89);
/* oklch */ color: oklch(82.1% 0.213 141.8);
Tailwind
colors: {
  custom: {
    50: '#9dee8d',
    500: '#66e559',
    950: '#000000',
  },
}
SCSS
$custom: #66e559;
$custom-light: #9dee8d;
$custom-dark: #000000;
JSON
{
  "hex": "#66e559",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 89
  },
  "hsl": {
    "h": 114.429,
    "s": 72.917,
    "l": 62.353
  },
  "oklch": {
    "l": 0.82096,
    "c": 0.21284,
    "h": 141.8
  },
  "luminance": 0.59585
}

Semantic roles & 50–950 ramp

primary
#66E559
secondary
#A037AB
accent
#10D5C3
background
#FCFFFC
surface
#F6FEF4
border
#D0D6CE
text
#0F160C
muted
#80857F

Preview Lab

Preview with #66E559

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

Preview Lab → · Contrast checker → · Palette generator →

#66E559 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva