#66CC2D#66CC2D

#66CC2D is a light, highly saturated yellow-green. Relative luminance 0.462; OKLCH L 75.5% C 0.211 H 137.1°. Best body text is #000000 at 10.24:1 contrast (WCAG AA passes).

Color values

HEX#66CC2D
RGBrgb(102, 204, 45)
HSLhsl(98, 64%, 49%)
HSVhsv(98, 78%, 80%)
CMYKcmyk(50%, 0%, 77.9%, 20%)
CIE-LABlab(73.67, -55.64, 64.53)
CIE-LCHlch(73.67, 85.21, 130.77°)
OKLaboklab(75.46% -0.1545 0.1434)
OKLCHoklch(75.46% 0.211 137.1)
XYZxyz(27.5452, 46.1980, 9.9477)
Luminance0.4620 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66CC2D #932DCC
analogous
#B6CC2D #66CC2D #2DCC44
triadic
#66CC2D #2D66CC #CC2D66
tetradic
#66CC2D #2DB6CC #932DCC #CC442D
square
#66CC2D #2DB6CC #932DCC #CC442D
split-complementary
#66CC2D #442DCC #CC2DB6
monochromatic
#346817 #4D9A22 #66CC2D #89DB5B #ADE68D

Accessibility & contrast

On white

2.05
#66CC2D on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.24
#66CC2D on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC2D
10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66CC2D#FFFFFF#000000##000000
##66CC2D1.002.0510.2410.24
#FFFFFF2.051.0021.0021.00
#00000010.2421.001.001.00
##00000010.2421.001.001.00

Color blindness preview

Protanopia (red-blind)
#D3BA00
Deuteranopia (green-blind)
#C6B23F
Tritanopia (blue-blind)
#60C5AF
Achromatopsia (no color)
#B5B5B5

Design tokens & code

CSS
--color: #66cc2d;
/* rgb */ color: rgb(102, 204, 45);
/* oklch */ color: oklch(75.5% 0.211 137.1);
Tailwind
colors: {
  custom: {
    50: '#9bdc73',
    500: '#66cc2d',
    950: '#000000',
  },
}
SCSS
$custom: #66cc2d;
$custom-light: #9bdc73;
$custom-dark: #000000;
JSON
{
  "hex": "#66cc2d",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 45
  },
  "hsl": {
    "h": 98.491,
    "s": 63.855,
    "l": 48.824
  },
  "oklch": {
    "l": 0.75459,
    "c": 0.21079,
    "h": 137.1
  },
  "luminance": 0.462
}

Semantic roles & 50–950 ramp

primary
#66CC2D
secondary
#B585D0
accent
#41E7AB
background
#FAFDF7
surface
#F4FBED
border
#CED4C8
text
#0F1509
muted
#7F837B

Preview Lab

Preview with #66CC2D

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

Preview Lab → · Contrast checker → · Palette generator →

#66CC2D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva