#66CD37#66CD37

#66CD37 is a light, highly saturated green. Relative luminance 0.468; OKLCH L 75.8% C 0.207 H 137.8°. Best body text is #000000 at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#66CD37
RGB	rgb(102, 205, 55)
HSL	hsl(101, 60%, 51%)
HSV	hsv(101, 73%, 80%)
CMYK	cmyk(50.2%, 0%, 73.2%, 19.6%)
CIE-LAB	lab(74.04, -55.40, 61.63)
CIE-LCH	lch(74.04, 82.87, 131.95°)
OKLab	oklab(75.78% -0.1532 0.1387)
OKLCH	oklch(75.78% 0.207 137.8)
XYZ	xyz(27.9995, 46.7612, 11.1641)
Luminance	0.4676 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD37 #9E37CD

analogous

#B1CD37 #66CD37 #37CD53

triadic

#66CD37 #3766CD #CD3766

tetradic

#66CD37 #37B1CD #9E37CD #CD5337

square

#66CD37 #37B1CD #9E37CD #CD5337

split-complementary

#66CD37 #5337CD #CD37B1

monochromatic

#356E1C #4D9F28 #66CD37 #8BD968 #B1E599

Accessibility & contrast

On white

2.03

#66CD37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.35

#66CD37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD37

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD37	#FFFFFF	#000000	##000000
##66CD37	1.00	2.03	10.35	10.35
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.35	21.00	1.00	1.00
##000000	10.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BB1A

Deuteranopia (green-blind)

#C6B346

Tritanopia (blue-blind)

#5EC6B0

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd37;
/* rgb */ color: rgb(102, 205, 55);
/* oklch */ color: oklch(75.8% 0.207 137.8);

Tailwind

colors: {
  custom: {
    50: '#9bdd77',
    500: '#66cd37',
    950: '#000000',
  },
}

SCSS

$custom: #66cd37;
$custom-light: #9bdd77;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd37",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 55
  },
  "hsl": {
    "h": 101.2,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.75775,
    "c": 0.20672,
    "h": 137.8
  },
  "luminance": 0.46763
}

Semantic roles & 50–950 ramp

primary

#66CD37

secondary

#BC8FD1

accent

#45E3B1

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CD37

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

Preview Lab → · Contrast checker → · Palette generator →