#66BB36#66BB36

#66BB36 is a light, vivid yellow-green. Relative luminance 0.386; OKLCH L 71.2% C 0.186 H 136.5°. Best body text is #000000 at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#66BB36
RGB	rgb(102, 187, 54)
HSL	hsl(98, 55%, 47%)
HSV	hsv(98, 71%, 73%)
CMYK	cmyk(45.5%, 0%, 71.1%, 26.7%)
CIE-LAB	lab(68.48, -48.49, 56.38)
CIE-LCH	lch(68.48, 74.37, 130.70°)
OKLab	oklab(71.21% -0.1347 0.1276)
OKLCH	oklch(71.21% 0.186 136.5)
XYZ	xyz(23.9150, 38.6303, 9.6855)
Luminance	0.3863 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BB36 #8B36BB

analogous

#A9BB36 #66BB36 #36BB49

triadic

#66BB36 #3666BB #BB3666

tetradic

#66BB36 #36A9BB #8B36BB #BB4936

square

#66BB36 #36A9BB #8B36BB #BB4936

split-complementary

#66BB36 #4936BB #BB36A9

monochromatic

#325C1B #4C8C28 #66BB36 #87D05E #AADE8D

Accessibility & contrast

On white

2.41

#66BB36 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.73

#66BB36 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BB36

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BB36	#FFFFFF	#000000	##000000
##66BB36	1.00	2.41	8.73	8.73
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.73	21.00	1.00	1.00
##000000	8.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AB20

Deuteranopia (green-blind)

#B6A443

Tritanopia (blue-blind)

#62B4A1

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66bb36;
/* rgb */ color: rgb(102, 187, 54);
/* oklch */ color: oklch(71.2% 0.186 136.5);

Tailwind

colors: {
  custom: {
    50: '#99d075',
    500: '#66bb36',
    950: '#000000',
  },
}

SCSS

$custom: #66bb36;
$custom-light: #99d075;
$custom-dark: #000000;

JSON

{
  "hex": "#66bb36",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 54
  },
  "hsl": {
    "h": 98.346,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.71209,
    "c": 0.18553,
    "h": 136.5
  },
  "luminance": 0.38632
}

Semantic roles & 50–950 ramp

primary

#66BB36

secondary

#B084C9

accent

#49DFA9

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1409

muted

#7E827B

Preview Lab

Preview with #66BB36

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

Preview Lab → · Contrast checker → · Palette generator →