#66C239#66C239

#66C239 is a light, vivid green. Relative luminance 0.417; OKLCH L 73.0% C 0.192 H 137.3°. Best body text is #000000 at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#66C239
RGB	rgb(102, 194, 57)
HSL	hsl(100, 55%, 49%)
HSV	hsv(100, 71%, 76%)
CMYK	cmyk(47.4%, 0%, 70.6%, 23.9%)
CIE-LAB	lab(70.67, -51.04, 57.49)
CIE-LCH	lch(70.67, 76.88, 131.60°)
OKLab	oklab(73.01% -0.1413 0.1304)
OKLCH	oklch(73.01% 0.192 137.3)
XYZ	xyz(25.5090, 41.7020, 10.5752)
Luminance	0.4170 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C239 #9539C2

analogous

#ABC239 #66C239 #39C251

triadic

#66C239 #3966C2 #C23966

tetradic

#66C239 #39ABC2 #9539C2 #C25139

square

#66C239 #39ABC2 #9539C2 #C25139

split-complementary

#66C239 #5139C2 #C239AB

monochromatic

#34631D #4D932B #66C239 #8AD266 #AEE095

Accessibility & contrast

On white

2.25

#66C239 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.34

#66C239 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C239

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C239	#FFFFFF	#000000	##000000
##66C239	1.00	2.25	9.34	9.34
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.34	21.00	1.00	1.00
##000000	9.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B223

Deuteranopia (green-blind)

#BCAA46

Tritanopia (blue-blind)

#60BBA7

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #66c239;
/* rgb */ color: rgb(102, 194, 57);
/* oklch */ color: oklch(73.0% 0.192 137.3);

Tailwind

colors: {
  custom: {
    50: '#99d577',
    500: '#66c239',
    950: '#000000',
  },
}

SCSS

$custom: #66c239;
$custom-light: #99d577;
$custom-dark: #000000;

JSON

{
  "hex": "#66c239",
  "rgb": {
    "r": 102,
    "g": 194,
    "b": 57
  },
  "hsl": {
    "h": 100.292,
    "s": 54.582,
    "l": 49.216
  },
  "oklch": {
    "l": 0.73007,
    "c": 0.19227,
    "h": 137.3
  },
  "luminance": 0.41704
}

Semantic roles & 50–950 ramp

primary

#66C239

secondary

#B68BCB

accent

#4ADEAD

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66C239

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

Preview Lab → · Contrast checker → · Palette generator →