#66CF5A#66CF5A

#66CF5A is a light, vivid green. Relative luminance 0.482; OKLCH L 76.6% C 0.184 H 141.7°. Best body text is #000000 at 10.64:1 contrast (WCAG AA passes).

Color values

HEX#66CF5A
RGBrgb(102, 207, 90)
HSLhsl(114, 55%, 58%)
HSVhsv(114, 57%, 81%)
CMYKcmyk(50.7%, 0%, 56.5%, 18.8%)
CIE-LABlab(74.94, -52.94, 48.24)
CIE-LCHlch(74.94, 71.63, 137.66°)
OKLaboklab(76.61% -0.1445 0.1142)
OKLCHoklch(76.61% 0.184 141.7)
XYZxyz(29.6364, 48.1863, 17.4101)
Luminance0.4819 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66CF5A #C35ACF
analogous
#A0CF5A #66CF5A #5ACF88
triadic
#66CF5A #5A66CF #CF5A66
tetradic
#66CF5A #5AA0CF #C35ACF #CF885A
square
#66CF5A #5AA0CF #C35ACF #CF885A
split-complementary
#66CF5A #885ACF #CF5AA0
monochromatic
#318727 #42B735 #66CF5A #92DD89 #BEEBB9

Accessibility & contrast

On white

1.97
#66CF5A on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.64
#66CF5A on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF5A
10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66CF5A#FFFFFF#000000##000000
##66CF5A1.001.9710.6410.64
#FFFFFF1.971.0021.0021.00
#00000010.6421.001.001.00
##00000010.6421.001.001.00

Color blindness preview

Protanopia (red-blind)
#D4BE4E
Deuteranopia (green-blind)
#C6B563
Tritanopia (blue-blind)
#59C9B5
Achromatopsia (no color)
#B8B8B8

Design tokens & code

CSS
--color: #66cf5a;
/* rgb */ color: rgb(102, 207, 90);
/* oklch */ color: oklch(76.6% 0.184 141.7);
Tailwind
colors: {
  custom: {
    50: '#9ade8c',
    500: '#66cf5a',
    950: '#000000',
  },
}
SCSS
$custom: #66cf5a;
$custom-light: #9ade8c;
$custom-dark: #000000;
JSON
{
  "hex": "#66cf5a",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 90
  },
  "hsl": {
    "h": 113.846,
    "s": 54.93,
    "l": 58.235
  },
  "oklch": {
    "l": 0.76614,
    "c": 0.18417,
    "h": 141.7
  },
  "luminance": 0.48189
}

Semantic roles & 50–950 ramp

primary
#66CF5A
secondary
#D5ABDA
accent
#4ADECF
background
#F9FDF8
surface
#F2FBF0
border
#CCD4CB
text
#0F150C
muted
#7E837D

Preview Lab

Preview with #66CF5A

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

Preview Lab → · Contrast checker → · Palette generator →

#66CF5A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva