#66BD27#66BD27

#66BD27 is a light, vivid yellow-green. Relative luminance 0.394; OKLCH L 71.6% C 0.196 H 135.7°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX#66BD27
RGBrgb(102, 189, 39)
HSLhsl(95, 66%, 45%)
HSVhsv(95, 79%, 74%)
CMYKcmyk(46%, 0%, 79.4%, 25.9%)
CIE-LABlab(69.01, -50.23, 61.95)
CIE-LCHlch(69.01, 79.75, 129.04°)
OKLaboklab(71.62% -0.1403 0.1371)
OKLCHoklch(71.62% 0.196 135.7)
XYZxyz(24.0427, 39.3649, 8.2504)
Luminance0.3937 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66BD27 #7E27BD
analogous
#B1BD27 #66BD27 #27BD33
triadic
#66BD27 #2766BD #BD2766
tetradic
#66BD27 #27B1BD #7E27BD #BD3327
square
#66BD27 #27B1BD #7E27BD #BD3327
split-complementary
#66BD27 #3327BD #BD27B1
monochromatic
#2F5812 #4B8A1D #66BD27 #85D948 #A7E47B

Accessibility & contrast

On white

2.37
#66BD27 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.87
#66BD27 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD27
8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66BD27#FFFFFF#000000##000000
##66BD271.002.378.878.87
#FFFFFF2.371.0021.0021.00
#0000008.8721.001.001.00
##0000008.8721.001.001.00

Color blindness preview

Protanopia (red-blind)
#C4AD00
Deuteranopia (green-blind)
#B8A638
Tritanopia (blue-blind)
#63B6A1
Achromatopsia (no color)
#A8A8A8

Design tokens & code

CSS
--color: #66bd27;
/* rgb */ color: rgb(102, 189, 39);
/* oklch */ color: oklch(71.6% 0.196 135.7);
Tailwind
colors: {
  custom: {
    50: '#99d16e',
    500: '#66bd27',
    950: '#000000',
  },
}
SCSS
$custom: #66bd27;
$custom-light: #99d16e;
$custom-dark: #000000;
JSON
{
  "hex": "#66bd27",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 39
  },
  "hsl": {
    "h": 94.8,
    "s": 65.789,
    "l": 44.706
  },
  "oklch": {
    "l": 0.71618,
    "c": 0.19617,
    "h": 135.7
  },
  "luminance": 0.39366
}

Semantic roles & 50–950 ramp

primary
#66BD27
secondary
#A774CC
accent
#3FE9A1
background
#F9FCF7
surface
#F2F9ED
border
#CCD2C8
text
#0F1408
muted
#7E827B

Preview Lab

Preview with #66BD27

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

Preview Lab → · Contrast checker → · Palette generator →

#66BD27 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva