#66BF40#66BF40

#66BF40 is a light, vivid green. Relative luminance 0.405; OKLCH L 72.3% C 0.184 H 137.8°. Best body text is #000000 at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#66BF40
RGB	rgb(102, 191, 64)
HSL	hsl(102, 50%, 50%)
HSV	hsv(102, 66%, 75%)
CMYK	cmyk(46.6%, 0%, 66.5%, 25.1%)
CIE-LAB	lab(69.79, -49.29, 53.82)
CIE-LCH	lch(69.79, 72.98, 132.48°)
OKLab	oklab(72.31% -0.1361 0.1235)
OKLCH	oklch(72.31% 0.184 137.8)
XYZ	xyz(25.0349, 40.4549, 11.3389)
Luminance	0.4046 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BF40 #9940BF

analogous

#A6BF40 #66BF40 #40BF59

triadic

#66BF40 #4066BF #BF4066

tetradic

#66BF40 #40A6BF #9940BF #BF5940

square

#66BF40 #40A6BF #9940BF #BF5940

split-complementary

#66BF40 #5940BF #BF40A6

monochromatic

#356321 #4E9131 #66BF40 #8BCE6E #AFDE9C

Accessibility & contrast

On white

2.31

#66BF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.09

#66BF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BF40

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BF40	#FFFFFF	#000000	##000000
##66BF40	1.00	2.31	9.09	9.09
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.09	21.00	1.00	1.00
##000000	9.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AF2F

Deuteranopia (green-blind)

#B9A84B

Tritanopia (blue-blind)

#60B8A5

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #66bf40;
/* rgb */ color: rgb(102, 191, 64);
/* oklch */ color: oklch(72.3% 0.184 137.8);

Tailwind

colors: {
  custom: {
    50: '#99d37b',
    500: '#66bf40',
    950: '#000000',
  },
}

SCSS

$custom: #66bf40;
$custom-light: #99d37b;
$custom-dark: #000000;

JSON

{
  "hex": "#66bf40",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 64
  },
  "hsl": {
    "h": 102.047,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.72307,
    "c": 0.18383,
    "h": 137.8
  },
  "luminance": 0.40457
}

Semantic roles & 50–950 ramp

primary

#66BF40

secondary

#B991CA

accent

#4ED9B0

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0E140A

muted

#7E837C

Preview Lab

Preview with #66BF40

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

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