#66B936#66B936

#66B936 is a light, vivid yellow-green. Relative luminance 0.378; OKLCH L 70.7% C 0.183 H 136.4°. Best body text is #000000 at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#66B936
RGB	rgb(102, 185, 54)
HSL	hsl(98, 55%, 47%)
HSV	hsv(98, 71%, 73%)
CMYK	cmyk(44.9%, 0%, 70.8%, 27.5%)
CIE-LAB	lab(67.86, -47.69, 55.75)
CIE-LCH	lch(67.86, 73.36, 130.55°)
OKLab	oklab(70.7% -0.1325 0.1263)
OKLCH	oklch(70.7% 0.183 136.4)
XYZ	xyz(23.4937, 37.7876, 9.5451)
Luminance	0.3779 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B936 #8936B9

analogous

#A8B936 #66B936 #36B947

triadic

#66B936 #3666B9 #B93666

tetradic

#66B936 #36A8B9 #8936B9 #B94736

square

#66B936 #36A8B9 #8936B9 #B94736

split-complementary

#66B936 #4736B9 #B936A8

monochromatic

#325A1A #4C8A28 #66B936 #87D05D #AADD8C

Accessibility & contrast

On white

2.45

#66B936 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.56

#66B936 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B936

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B936	#FFFFFF	#000000	##000000
##66B936	1.00	2.45	8.56	8.56
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.56	21.00	1.00	1.00
##000000	8.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFAA21

Deuteranopia (green-blind)

#B4A342

Tritanopia (blue-blind)

#62B29F

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66b936;
/* rgb */ color: rgb(102, 185, 54);
/* oklch */ color: oklch(70.7% 0.183 136.4);

Tailwind

colors: {
  custom: {
    50: '#98cf75',
    500: '#66b936',
    950: '#000000',
  },
}

SCSS

$custom: #66b936;
$custom-light: #98cf75;
$custom-dark: #000000;

JSON

{
  "hex": "#66b936",
  "rgb": {
    "r": 102,
    "g": 185,
    "b": 54
  },
  "hsl": {
    "h": 98.015,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.70701,
    "c": 0.18304,
    "h": 136.4
  },
  "luminance": 0.37789
}

Semantic roles & 50–950 ramp

primary

#66B936

secondary

#AF83C8

accent

#4ADEA8

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1409

muted

#7E827B

Preview Lab

Preview with #66B936

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

Preview Lab → · Contrast checker → · Palette generator →