#66C033#66C033

#66C033 is a light, vivid yellow-green. Relative luminance 0.408; OKLCH L 72.5% C 0.193 H 136.7°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX#66C033
RGBrgb(102, 192, 51)
HSLhsl(98, 58%, 48%)
HSVhsv(98, 73%, 75%)
CMYKcmyk(46.9%, 0%, 73.4%, 24.7%)
CIE-LABlab(70.01, -50.68, 59.01)
CIE-LCHlch(70.01, 77.79, 130.66°)
OKLaboklab(72.46% -0.1408 0.1327)
OKLCHoklch(72.46% 0.193 136.7)
XYZxyz(24.9260, 40.7614, 9.6856)
Luminance0.4076 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66C033 #8D33C0
analogous
#ACC033 #66C033 #33C046
triadic
#66C033 #3366C0 #C03366
tetradic
#66C033 #33ACC0 #8D33C0 #C04633
square
#66C033 #33ACC0 #8D33C0 #C04633
split-complementary
#66C033 #4633C0 #C033AC
monochromatic
#335F19 #4C9026 #66C033 #88D45C #ABE18D

Accessibility & contrast

On white

2.29
#66C033 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.15
#66C033 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C033
9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66C033#FFFFFF#000000##000000
##66C0331.002.299.159.15
#FFFFFF2.291.0021.0021.00
#0000009.1521.001.001.00
##0000009.1521.001.001.00

Color blindness preview

Protanopia (red-blind)
#C7B018
Deuteranopia (green-blind)
#BBA841
Tritanopia (blue-blind)
#61B9A5
Achromatopsia (no color)
#ABABAB

Design tokens & code

CSS
--color: #66c033;
/* rgb */ color: rgb(102, 192, 51);
/* oklch */ color: oklch(72.5% 0.193 136.7);
Tailwind
colors: {
  custom: {
    50: '#99d474',
    500: '#66c033',
    950: '#000000',
  },
}
SCSS
$custom: #66c033;
$custom-light: #99d474;
$custom-dark: #000000;
JSON
{
  "hex": "#66c033",
  "rgb": {
    "r": 102,
    "g": 192,
    "b": 51
  },
  "hsl": {
    "h": 98.298,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.72455,
    "c": 0.19347,
    "h": 136.7
  },
  "luminance": 0.40763
}

Semantic roles & 50–950 ramp

primary
#66C033
secondary
#B184CB
accent
#47E1A9
background
#F9FDF7
surface
#F2FAED
border
#CCD3C8
text
#0F1409
muted
#7E837B

Preview Lab

Preview with #66C033

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

Preview Lab → · Contrast checker → · Palette generator →

#66C033 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva