#66C23D#66C23D

#66C23D is a light, vivid green. Relative luminance 0.417; OKLCH L 73.0% C 0.190 H 137.7°. Best body text is #000000 at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#66C23D
RGB	rgb(102, 194, 61)
HSL	hsl(102, 52%, 50%)
HSV	hsv(102, 69%, 76%)
CMYK	cmyk(47.4%, 0%, 68.6%, 23.9%)
CIE-LAB	lab(70.69, -50.72, 55.98)
CIE-LCH	lch(70.69, 75.54, 132.18°)
OKLab	oklab(73.04% -0.1402 0.1277)
OKLCH	oklch(73.04% 0.19 137.7)
XYZ	xyz(25.6127, 41.7435, 11.1217)
Luminance	0.4174 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C23D #993DC2

analogous

#A8C23D #66C23D #3DC257

triadic

#66C23D #3D66C2 #C23D66

tetradic

#66C23D #3DA8C2 #993DC2 #C2573D

square

#66C23D #3DA8C2 #993DC2 #C2573D

split-complementary

#66C23D #573DC2 #C23DA8

monochromatic

#356520 #4E932E #66C23D #8BD16C #AFDF9A

Accessibility & contrast

On white

2.25

#66C23D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.35

#66C23D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C23D

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C23D	#FFFFFF	#000000	##000000
##66C23D	1.00	2.25	9.35	9.35
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.35	21.00	1.00	1.00
##000000	9.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B229

Deuteranopia (green-blind)

#BCAA49

Tritanopia (blue-blind)

#60BBA7

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #66c23d;
/* rgb */ color: rgb(102, 194, 61);
/* oklch */ color: oklch(73.0% 0.190 137.7);

Tailwind

colors: {
  custom: {
    50: '#99d579',
    500: '#66c23d',
    950: '#000000',
  },
}

SCSS

$custom: #66c23d;
$custom-light: #99d579;
$custom-dark: #000000;

JSON

{
  "hex": "#66c23d",
  "rgb": {
    "r": 102,
    "g": 194,
    "b": 61
  },
  "hsl": {
    "h": 101.504,
    "s": 52.157,
    "l": 50
  },
  "oklch": {
    "l": 0.7304,
    "c": 0.18967,
    "h": 137.7
  },
  "luminance": 0.41745
}

Semantic roles & 50–950 ramp

primary

#66C23D

secondary

#B990CB

accent

#4CDCAF

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F140A

muted

#7E837C

Preview Lab

Preview with #66C23D

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

Preview Lab → · Contrast checker → · Palette generator →