#66BF3C#66BF3C

#66BF3C is a light, vivid green. Relative luminance 0.404; OKLCH L 72.3% C 0.187 H 137.4°. Best body text is #000000 at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#66BF3C
RGB	rgb(102, 191, 60)
HSL	hsl(101, 52%, 49%)
HSV	hsv(101, 69%, 75%)
CMYK	cmyk(46.6%, 0%, 68.6%, 25.1%)
CIE-LAB	lab(69.76, -49.62, 55.40)
CIE-LCH	lch(69.76, 74.37, 131.85°)
OKLab	oklab(72.27% -0.1373 0.1264)
OKLCH	oklch(72.27% 0.187 137.4)
XYZ	xyz(24.9251, 40.4110, 10.7608)
Luminance	0.4041 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BF3C #953CBF

analogous

#A8BF3C #66BF3C #3CBF53

triadic

#66BF3C #3C66BF #BF3C66

tetradic

#66BF3C #3CA8BF #953CBF #BF533C

square

#66BF3C #3CA8BF #953CBF #BF533C

split-complementary

#66BF3C #533CBF #BF3CA8

monochromatic

#34621F #4D902D #66BF3C #8AD068 #AEDE97

Accessibility & contrast

On white

2.31

#66BF3C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.08

#66BF3C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BF3C

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BF3C	#FFFFFF	#000000	##000000
##66BF3C	1.00	2.31	9.08	9.08
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.08	21.00	1.00	1.00
##000000	9.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AF29

Deuteranopia (green-blind)

#B9A848

Tritanopia (blue-blind)

#61B8A5

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #66bf3c;
/* rgb */ color: rgb(102, 191, 60);
/* oklch */ color: oklch(72.3% 0.187 137.4);

Tailwind

colors: {
  custom: {
    50: '#99d379',
    500: '#66bf3c',
    950: '#000000',
  },
}

SCSS

$custom: #66bf3c;
$custom-light: #99d379;
$custom-dark: #000000;

JSON

{
  "hex": "#66bf3c",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 60
  },
  "hsl": {
    "h": 100.763,
    "s": 52.191,
    "l": 49.216
  },
  "oklch": {
    "l": 0.72272,
    "c": 0.1866,
    "h": 137.4
  },
  "luminance": 0.40413
}

Semantic roles & 50–950 ramp

primary

#66BF3C

secondary

#B68DCA

accent

#4CDCAE

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66BF3C

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

Preview Lab → · Contrast checker → · Palette generator →