#66C339#66C339

#66C339 is a light, vivid green. Relative luminance 0.421; OKLCH L 73.3% C 0.194 H 137.4°. Best body text is #000000 at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#66C339
RGB	rgb(102, 195, 57)
HSL	hsl(100, 55%, 49%)
HSV	hsv(100, 71%, 76%)
CMYK	cmyk(47.7%, 0%, 70.8%, 23.5%)
CIE-LAB	lab(70.97, -51.43, 57.81)
CIE-LCH	lch(70.97, 77.37, 131.66°)
OKLab	oklab(73.26% -0.1424 0.131)
OKLCH	oklch(73.26% 0.194 137.4)
XYZ	xyz(25.7323, 42.1487, 10.6497)
Luminance	0.4215 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C339 #9639C3

analogous

#ABC339 #66C339 #39C351

triadic

#66C339 #3966C3 #C33966

tetradic

#66C339 #39ABC3 #9639C3 #C35139

square

#66C339 #39ABC3 #9639C3 #C35139

split-complementary

#66C339 #5139C3 #C339AB

monochromatic

#34641D #4D942B #66C339 #8AD267 #AEE096

Accessibility & contrast

On white

2.23

#66C339 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.43

#66C339 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C339

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C339	#FFFFFF	#000000	##000000
##66C339	1.00	2.23	9.43	9.43
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.43	21.00	1.00	1.00
##000000	9.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9B322

Deuteranopia (green-blind)

#BDAB46

Tritanopia (blue-blind)

#60BCA8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #66c339;
/* rgb */ color: rgb(102, 195, 57);
/* oklch */ color: oklch(73.3% 0.194 137.4);

Tailwind

colors: {
  custom: {
    50: '#99d677',
    500: '#66c339',
    950: '#000000',
  },
}

SCSS

$custom: #66c339;
$custom-light: #99d677;
$custom-dark: #000000;

JSON

{
  "hex": "#66c339",
  "rgb": {
    "r": 102,
    "g": 195,
    "b": 57
  },
  "hsl": {
    "h": 100.435,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.7326,
    "c": 0.1935,
    "h": 137.4
  },
  "luminance": 0.4215
}

Semantic roles & 50–950 ramp

primary

#66C339

secondary

#B78CCC

accent

#4ADEAE

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66C339

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

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