#66AD25#66AD25

#66AD25 is a light, vivid yellow-green. Relative luminance 0.328; OKLCH L 67.5% C 0.178 H 133.9°. Best body text is #000000 at 7.57:1 contrast (WCAG AA passes).

Color values

HEX#66AD25
RGBrgb(102, 173, 37)
HSLhsl(91, 65%, 41%)
HSVhsv(91, 79%, 68%)
CMYKcmyk(41%, 0%, 78.6%, 32.2%)
CIE-LABlab(64.03, -43.88, 57.89)
CIE-LCHlch(64.03, 72.64, 127.16°)
OKLaboklab(67.53% -0.1233 0.1283)
OKLCHoklch(67.53% 0.178 133.9)
XYZxyz(20.7566, 32.8444, 6.9958)
Luminance0.3285 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66AD25 #6C25AD
analogous
#AAAD25 #66AD25 #25AD28
triadic
#66AD25 #2566AD #AD2566
tetradic
#66AD25 #25AAAD #6C25AD #AD2825
square
#66AD25 #25AAAD #6C25AD #AD2825
split-complementary
#66AD25 #2825AD #AD25AA
monochromatic
#2B480F #487B1A #66AD25 #84D53A #A4E06D

Accessibility & contrast

On white

2.77
#66AD25 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.57
#66AD25 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AD25
7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66AD25#FFFFFF#000000##000000
##66AD251.002.777.577.57
#FFFFFF2.771.0021.0021.00
#0000007.5721.001.001.00
##0000007.5721.001.001.00

Color blindness preview

Protanopia (red-blind)
#B49F00
Deuteranopia (green-blind)
#AA9934
Tritanopia (blue-blind)
#65A694
Achromatopsia (no color)
#9B9B9B

Design tokens & code

CSS
--color: #66ad25;
/* rgb */ color: rgb(102, 173, 37);
/* oklch */ color: oklch(67.5% 0.178 133.9);
Tailwind
colors: {
  custom: {
    50: '#98c66b',
    500: '#66ad25',
    950: '#000000',
  },
}
SCSS
$custom: #66ad25;
$custom-light: #98c66b;
$custom-dark: #000000;
JSON
{
  "hex": "#66ad25",
  "rgb": {
    "r": 102,
    "g": 173,
    "b": 37
  },
  "hsl": {
    "h": 91.324,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.67529,
    "c": 0.17798,
    "h": 133.9
  },
  "luminance": 0.32845
}

Semantic roles & 50–950 ramp

primary
#66AD25
secondary
#9968C6
accent
#40E898
background
#F9FCF6
surface
#F2F8EC
border
#CCD1C7
text
#0E1307
muted
#7E827A

Preview Lab

Preview with #66AD25

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

Preview Lab → · Contrast checker → · Palette generator →

#66AD25 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva