#66D544#66D544

#66D544 is a light, highly saturated green. Relative luminance 0.508; OKLCH L 77.9% C 0.208 H 139.3°. Best body text is #000000 at 11.17:1 contrast (WCAG AA passes).

Color values

HEX#66D544
RGBrgb(102, 213, 68)
HSLhsl(106, 63%, 55%)
HSVhsv(106, 68%, 84%)
CMYKcmyk(52.1%, 0%, 68.1%, 16.5%)
CIE-LABlab(76.57, -57.41, 59.44)
CIE-LCHlch(76.57, 82.63, 134.00°)
OKLaboklab(77.89% -0.1579 0.1358)
OKLCHoklch(77.89% 0.208 139.3)
XYZxyz(30.3159, 50.8283, 13.6810)
Luminance0.5083 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66D544 #B344D5
analogous
#AFD544 #66D544 #44D56A
triadic
#66D544 #4466D5 #D54466
tetradic
#66D544 #44AFD5 #B344D5 #D56A44
square
#66D544 #44AFD5 #B344D5 #D56A44
split-complementary
#66D544 #6A44D5 #D544AF
monochromatic
#35821D #49B328 #66D544 #8FE076 #B8EBA8

Accessibility & contrast

On white

1.88
#66D544 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.17
#66D544 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D544
11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66D544#FFFFFF#000000##000000
##66D5441.001.8811.1711.17
#FFFFFF1.881.0021.0021.00
#00000011.1721.001.001.00
##00000011.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#DBC32F
Deuteranopia (green-blind)
#CDB951
Tritanopia (blue-blind)
#5BCEB8
Achromatopsia (no color)
#BDBDBD

Design tokens & code

CSS
--color: #66d544;
/* rgb */ color: rgb(102, 213, 68);
/* oklch */ color: oklch(77.9% 0.208 139.3);
Tailwind
colors: {
  custom: {
    50: '#9be37f',
    500: '#66d544',
    950: '#000000',
  },
}
SCSS
$custom: #66d544;
$custom-light: #9be37f;
$custom-dark: #000000;
JSON
{
  "hex": "#66d544",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 68
  },
  "hsl": {
    "h": 105.931,
    "s": 63.319,
    "l": 55.098
  },
  "oklch": {
    "l": 0.77893,
    "c": 0.20826,
    "h": 139.3
  },
  "luminance": 0.50831
}

Semantic roles & 50–950 ramp

primary
#66D544
secondary
#753589
accent
#41E6C0
background
#FCFEFB
surface
#F5FCF2
border
#CFD5CC
text
#0F150B
muted
#80847E

Preview Lab

Preview with #66D544

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

Preview Lab → · Contrast checker → · Palette generator →

#66D544 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva