#66CE37#66CE37

#66CE37 is a light, highly saturated green. Relative luminance 0.472; OKLCH L 76.0% C 0.208 H 137.9°. Best body text is #000000 at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#66CE37
RGB	rgb(102, 206, 55)
HSL	hsl(101, 61%, 51%)
HSV	hsv(101, 73%, 81%)
CMYK	cmyk(50.5%, 0%, 73.3%, 19.2%)
CIE-LAB	lab(74.34, -55.77, 61.93)
CIE-LCH	lch(74.34, 83.35, 132.01°)
OKLab	oklab(76.03% -0.1543 0.1394)
OKLCH	oklch(76.03% 0.208 137.9)
XYZ	xyz(28.2394, 47.2412, 11.2441)
Luminance	0.4724 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CE37 #9F37CE

analogous

#B1CE37 #66CE37 #37CE53

triadic

#66CE37 #3766CE #CE3766

tetradic

#66CE37 #37B1CE #9F37CE #CE5337

square

#66CE37 #37B1CE #9F37CE #CE5337

split-complementary

#66CE37 #5337CE #CE37B1

monochromatic

#356F1B #4DA027 #66CE37 #8CDA68 #B1E699

Accessibility & contrast

On white

2.01

#66CE37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.45

#66CE37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CE37

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CE37	#FFFFFF	#000000	##000000
##66CE37	1.00	2.01	10.45	10.45
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.45	21.00	1.00	1.00
##000000	10.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BC19

Deuteranopia (green-blind)

#C7B446

Tritanopia (blue-blind)

#5EC7B1

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66ce37;
/* rgb */ color: rgb(102, 206, 55);
/* oklch */ color: oklch(76.0% 0.208 137.9);

Tailwind

colors: {
  custom: {
    50: '#9bde78',
    500: '#66ce37',
    950: '#000000',
  },
}

SCSS

$custom: #66ce37;
$custom-light: #9bde78;
$custom-dark: #000000;

JSON

{
  "hex": "#66ce37",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 55
  },
  "hsl": {
    "h": 101.325,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.76028,
    "c": 0.20789,
    "h": 137.9
  },
  "luminance": 0.47243
}

Semantic roles & 50–950 ramp

primary

#66CE37

secondary

#BD8FD2

accent

#44E4B2

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CE37

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

Preview Lab → · Contrast checker → · Palette generator →