#66CA2D#66CA2D

#66CA2D is a light, highly saturated yellow-green. Relative luminance 0.453; OKLCH L 75.0% C 0.208 H 137.0°. Best body text is #000000 at 10.05:1 contrast (WCAG AA passes).

Color values

HEX#66CA2D
RGBrgb(102, 202, 45)
HSLhsl(98, 64%, 48%)
HSVhsv(98, 78%, 79%)
CMYKcmyk(49.5%, 0%, 77.7%, 20.8%)
CIE-LABlab(73.06, -54.89, 63.95)
CIE-LCHlch(73.06, 84.28, 130.64°)
OKLaboklab(74.95% -0.1525 0.1422)
OKLCHoklch(74.95% 0.208 137)
XYZxyz(27.0728, 45.2534, 9.7903)
Luminance0.4526 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66CA2D #912DCA
analogous
#B4CA2D #66CA2D #2DCA43
triadic
#66CA2D #2D66CA #CA2D66
tetradic
#66CA2D #2DB4CA #912DCA #CA432D
square
#66CA2D #2DB4CA #912DCA #CA432D
split-complementary
#66CA2D #432DCA #CA2DB4
monochromatic
#336617 #4D9822 #66CA2D #89DA5A #ACE58C

Accessibility & contrast

On white

2.09
#66CA2D on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.05
#66CA2D on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CA2D
10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66CA2D#FFFFFF#000000##000000
##66CA2D1.002.0910.0510.05
#FFFFFF2.091.0021.0021.00
#00000010.0521.001.001.00
##00000010.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D1B800
Deuteranopia (green-blind)
#C4B03F
Tritanopia (blue-blind)
#60C3AD
Achromatopsia (no color)
#B3B3B3

Design tokens & code

CSS
--color: #66ca2d;
/* rgb */ color: rgb(102, 202, 45);
/* oklch */ color: oklch(75.0% 0.208 137.0);
Tailwind
colors: {
  custom: {
    50: '#9bdb72',
    500: '#66ca2d',
    950: '#000000',
  },
}
SCSS
$custom: #66ca2d;
$custom-light: #9bdb72;
$custom-dark: #000000;
JSON
{
  "hex": "#66ca2d",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 45
  },
  "hsl": {
    "h": 98.217,
    "s": 63.563,
    "l": 48.431
  },
  "oklch": {
    "l": 0.74952,
    "c": 0.20849,
    "h": 137
  },
  "luminance": 0.45255
}

Semantic roles & 50–950 ramp

primary
#66CA2D
secondary
#B483CF
accent
#41E7AB
background
#FAFDF7
surface
#F4FBED
border
#CED4C8
text
#0F1509
muted
#7F837B

Preview Lab

Preview with #66CA2D

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

Preview Lab → · Contrast checker → · Palette generator →

#66CA2D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva