#66CF36#66CF36

#66CF36 is a light, highly saturated green. Relative luminance 0.477; OKLCH L 76.3% C 0.210 H 137.9°. Best body text is #000000 at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#66CF36
RGB	rgb(102, 207, 54)
HSL	hsl(101, 61%, 51%)
HSV	hsv(101, 74%, 81%)
CMYK	cmyk(50.7%, 0%, 73.9%, 18.8%)
CIE-LAB	lab(74.64, -56.22, 62.58)
CIE-LCH	lch(74.64, 84.12, 131.94°)
OKLab	oklab(76.27% -0.1555 0.1406)
OKLCH	oklch(76.27% 0.21 137.9)
XYZ	xyz(28.4572, 47.7147, 11.1996)
Luminance	0.4772 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF36 #9F36CF

analogous

#B3CF36 #66CF36 #36CF52

triadic

#66CF36 #3666CF #CF3666

tetradic

#66CF36 #36B3CF #9F36CF #CF5236

square

#66CF36 #36B3CF #9F36CF #CF5236

split-complementary

#66CF36 #5236CF #CF36B3

monochromatic

#35701B #4DA127 #66CF36 #8CDB67 #B1E799

Accessibility & contrast

On white

1.99

#66CF36 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.54

#66CF36 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF36

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF36	#FFFFFF	#000000	##000000
##66CF36	1.00	1.99	10.54	10.54
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.54	21.00	1.00	1.00
##000000	10.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BD16

Deuteranopia (green-blind)

#C8B446

Tritanopia (blue-blind)

#5EC8B2

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf36;
/* rgb */ color: rgb(102, 207, 54);
/* oklch */ color: oklch(76.3% 0.210 137.9);

Tailwind

colors: {
  custom: {
    50: '#9bde77',
    500: '#66cf36',
    950: '#000000',
  },
}

SCSS

$custom: #66cf36;
$custom-light: #9bde77;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf36",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 54
  },
  "hsl": {
    "h": 101.176,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.76274,
    "c": 0.20963,
    "h": 137.9
  },
  "luminance": 0.47717
}

Semantic roles & 50–950 ramp

primary

#66CF36

secondary

#BD8FD2

accent

#43E5B2

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CF36

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

Preview Lab → · Contrast checker → · Palette generator →