#66CF3E#66CF3E

#66CF3E is a light, highly saturated green. Relative luminance 0.478; OKLCH L 76.3% C 0.205 H 138.5°. Best body text is #000000 at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#66CF3E
RGB	rgb(102, 207, 62)
HSL	hsl(103, 60%, 53%)
HSV	hsv(103, 70%, 81%)
CMYK	cmyk(50.7%, 0%, 70%, 18.8%)
CIE-LAB	lab(74.70, -55.64, 59.76)
CIE-LCH	lch(74.70, 81.66, 132.95°)
OKLab	oklab(76.33% -0.1535 0.1358)
OKLCH	oklch(76.33% 0.205 138.5)
XYZ	xyz(28.6608, 47.7961, 12.2718)
Luminance	0.4780 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF3E #A73ECF

analogous

#AFCF3E #66CF3E #3ECF5E

triadic

#66CF3E #3E66CF #CF3E66

tetradic

#66CF3E #3EAFCF #A73ECF #CF5E3E

square

#66CF3E #3EAFCF #A73ECF #CF5E3E

split-complementary

#66CF3E #5E3ECF #CF3EAF

monochromatic

#36751D #4CA629 #66CF3E #8DDB6F #B4E7A0

Accessibility & contrast

On white

1.99

#66CF3E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.56

#66CF3E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF3E

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF3E	#FFFFFF	#000000	##000000
##66CF3E	1.00	1.99	10.56	10.56
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.56	21.00	1.00	1.00
##000000	10.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BD27

Deuteranopia (green-blind)

#C8B44C

Tritanopia (blue-blind)

#5DC8B2

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf3e;
/* rgb */ color: rgb(102, 207, 62);
/* oklch */ color: oklch(76.3% 0.205 138.5);

Tailwind

colors: {
  custom: {
    50: '#9bde7b',
    500: '#66cf3e',
    950: '#000000',
  },
}

SCSS

$custom: #66cf3e;
$custom-light: #9bde7b;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf3e",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 62
  },
  "hsl": {
    "h": 103.448,
    "s": 60.166,
    "l": 52.745
  },
  "oklch": {
    "l": 0.76333,
    "c": 0.20491,
    "h": 138.5
  },
  "luminance": 0.47798
}

Semantic roles & 50–950 ramp

primary

#66CF3E

secondary

#C295D4

accent

#44E3B7

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CF3E

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

Preview Lab → · Contrast checker → · Palette generator →