#66D54E#66D54E

#66D54E is a light, highly saturated green. Relative luminance 0.510; OKLCH L 78.0% C 0.201 H 140.3°. Best body text is #000000 at 11.19:1 contrast (WCAG AA passes).

Color values

HEX#66D54E
RGBrgb(102, 213, 78)
HSLhsl(109, 62%, 57%)
HSVhsv(109, 63%, 84%)
CMYKcmyk(52.1%, 0%, 63.4%, 16.5%)
CIE-LABlab(76.66, -56.51, 55.48)
CIE-LCHlch(76.66, 79.20, 135.53°)
OKLaboklab(77.99% -0.1548 0.1286)
OKLCHoklch(77.99% 0.201 140.3)
XYZxyz(30.6476, 50.9609, 15.4277)
Luminance0.5096 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66D54E #BD4ED5
analogous
#AAD54E #66D54E #4ED579
triadic
#66D54E #4E66D5 #D54E66
tetradic
#66D54E #4EAAD5 #BD4ED5 #D5794E
square
#66D54E #4EAAD5 #BD4ED5 #D5794E
split-complementary
#66D54E #794ED5 #D54EAA
monochromatic
#338820 #45BA2C #66D54E #91E17F #BCECB1

Accessibility & contrast

On white

1.88
#66D54E on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.19
#66D54E on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D54E
11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66D54E#FFFFFF#000000##000000
##66D54E1.001.8811.1911.19
#FFFFFF1.881.0021.0021.00
#00000011.1921.001.001.00
##00000011.1921.001.001.00

Color blindness preview

Protanopia (red-blind)
#DBC33E
Deuteranopia (green-blind)
#CCBA59
Tritanopia (blue-blind)
#5ACEB9
Achromatopsia (no color)
#BDBDBD

Design tokens & code

CSS
--color: #66d54e;
/* rgb */ color: rgb(102, 213, 78);
/* oklch */ color: oklch(78.0% 0.201 140.3);
Tailwind
colors: {
  custom: {
    50: '#9be385',
    500: '#66d54e',
    950: '#000000',
  },
}
SCSS
$custom: #66d54e;
$custom-light: #9be385;
$custom-dark: #000000;
JSON
{
  "hex": "#66d54e",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 78
  },
  "hsl": {
    "h": 109.333,
    "s": 61.644,
    "l": 57.059
  },
  "oklch": {
    "l": 0.77985,
    "c": 0.2013,
    "h": 140.3
  },
  "luminance": 0.50963
}

Semantic roles & 50–950 ramp

primary
#66D54E
secondary
#7F398F
accent
#43E5C8
background
#FCFEFB
surface
#F5FCF2
border
#CFD5CC
text
#0F150B
muted
#80847E

Preview Lab

Preview with #66D54E

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

Preview Lab → · Contrast checker → · Palette generator →

#66D54E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva