#66CF38#66CF38

#66CF38 is a light, highly saturated green. Relative luminance 0.477; OKLCH L 76.3% C 0.209 H 138.0°. Best body text is #000000 at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#66CF38
RGB	rgb(102, 207, 56)
HSL	hsl(102, 61%, 52%)
HSV	hsv(102, 73%, 81%)
CMYK	cmyk(50.7%, 0%, 72.9%, 18.8%)
CIE-LAB	lab(74.66, -56.08, 61.90)
CIE-LCH	lch(74.66, 83.52, 132.18°)
OKLab	oklab(76.29% -0.155 0.1394)
OKLCH	oklch(76.29% 0.209 138)
XYZ	xyz(28.5051, 47.7338, 11.4521)
Luminance	0.4774 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF38 #A138CF

analogous

#B2CF38 #66CF38 #38CF56

triadic

#66CF38 #3866CF #CF3866

tetradic

#66CF38 #38B2CF #A138CF #CF5638

square

#66CF38 #38B2CF #A138CF #CF5638

split-complementary

#66CF38 #5638CF #CF38B2

monochromatic

#36711B #4DA327 #66CF38 #8CDB69 #B2E79B

Accessibility & contrast

On white

1.99

#66CF38 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.55

#66CF38 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF38

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF38	#FFFFFF	#000000	##000000
##66CF38	1.00	1.99	10.55	10.55
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.55	21.00	1.00	1.00
##000000	10.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BD1B

Deuteranopia (green-blind)

#C8B447

Tritanopia (blue-blind)

#5EC8B2

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf38;
/* rgb */ color: rgb(102, 207, 56);
/* oklch */ color: oklch(76.3% 0.209 138.0);

Tailwind

colors: {
  custom: {
    50: '#9bde78',
    500: '#66cf38',
    950: '#000000',
  },
}

SCSS

$custom: #66cf38;
$custom-light: #9bde78;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf38",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 56
  },
  "hsl": {
    "h": 101.722,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.76288,
    "c": 0.20851,
    "h": 138
  },
  "luminance": 0.47736
}

Semantic roles & 50–950 ramp

primary

#66CF38

secondary

#BE90D3

accent

#44E4B3

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CF38

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

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