#66CF3C#66CF3C

#66CF3C is a light, highly saturated green. Relative luminance 0.478; OKLCH L 76.3% C 0.206 H 138.3°. Best body text is #000000 at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#66CF3C
RGB	rgb(102, 207, 60)
HSL	hsl(103, 60%, 52%)
HSV	hsv(103, 71%, 81%)
CMYK	cmyk(50.7%, 0%, 71%, 18.8%)
CIE-LAB	lab(74.68, -55.79, 60.49)
CIE-LCH	lch(74.68, 82.29, 132.69°)
OKLab	oklab(76.32% -0.154 0.137)
OKLCH	oklch(76.32% 0.206 138.3)
XYZ	xyz(28.6069, 47.7745, 11.9881)
Luminance	0.4778 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF3C #A53CCF

analogous

#B0CF3C #66CF3C #3CCF5B

triadic

#66CF3C #3C66CF #CF3C66

tetradic

#66CF3C #3CB0CF #A53CCF #CF5B3C

square

#66CF3C #3CB0CF #A53CCF #CF5B3C

split-complementary

#66CF3C #5B3CCF #CF3CB0

monochromatic

#36741D #4CA529 #66CF3C #8DDB6D #B3E79E

Accessibility & contrast

On white

1.99

#66CF3C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.56

#66CF3C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF3C

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF3C	#FFFFFF	#000000	##000000
##66CF3C	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)

#D5BD23

Deuteranopia (green-blind)

#C8B44A

Tritanopia (blue-blind)

#5EC8B2

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf3c;
/* rgb */ color: rgb(102, 207, 60);
/* oklch */ color: oklch(76.3% 0.206 138.3);

Tailwind

colors: {
  custom: {
    50: '#9bde7a',
    500: '#66cf3c',
    950: '#000000',
  },
}

SCSS

$custom: #66cf3c;
$custom-light: #9bde7a;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf3c",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 60
  },
  "hsl": {
    "h": 102.857,
    "s": 60.494,
    "l": 52.353
  },
  "oklch": {
    "l": 0.76317,
    "c": 0.20614,
    "h": 138.3
  },
  "luminance": 0.47777
}

Semantic roles & 50–950 ramp

primary

#66CF3C

secondary

#C193D3

accent

#44E4B6

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CF3C

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

Preview Lab → · Contrast checker → · Palette generator →