#66D651#66D651

#66D651 is a light, highly saturated green. Relative luminance 0.515; OKLCH L 78.3% C 0.200 H 140.6°. Best body text is #000000 at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#66D651
RGB	rgb(102, 214, 81)
HSL	hsl(111, 62%, 58%)
HSV	hsv(111, 62%, 84%)
CMYK	cmyk(52.3%, 0%, 62.1%, 16.1%)
CIE-LAB	lab(76.99, -56.59, 54.58)
CIE-LCH	lch(76.99, 78.63, 136.04°)
OKLab	oklab(78.27% -0.1549 0.127)
OKLCH	oklch(78.27% 0.2 140.6)
XYZ	xyz(31.0099, 51.5095, 16.0912)
Luminance	0.5151 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D651 #C151D6

analogous

#A9D651 #66D651 #51D67E

triadic

#66D651 #5166D6 #D65166

tetradic

#66D651 #51A9D6 #C151D6 #D67E51

square

#66D651 #51A9D6 #C151D6 #D67E51

split-complementary

#66D651 #7E51D6 #D651A9

monochromatic

#328C21 #43BD2D #66D651 #92E283 #BDEDB4

Accessibility & contrast

On white

1.86

#66D651 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.30

#66D651 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D651

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D651	#FFFFFF	#000000	##000000
##66D651	1.00	1.86	11.30	11.30
#FFFFFF	1.86	1.00	21.00	21.00
#000000	11.30	21.00	1.00	1.00
##000000	11.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBC442

Deuteranopia (green-blind)

#CDBA5C

Tritanopia (blue-blind)

#59D0BA

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66d651;
/* rgb */ color: rgb(102, 214, 81);
/* oklch */ color: oklch(78.3% 0.200 140.6);

Tailwind

colors: {
  custom: {
    50: '#9be387',
    500: '#66d651',
    950: '#000000',
  },
}

SCSS

$custom: #66d651;
$custom-light: #9be387;
$custom-dark: #000000;

JSON

{
  "hex": "#66d651",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 81
  },
  "hsl": {
    "h": 110.526,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.78266,
    "c": 0.20031,
    "h": 140.6
  },
  "luminance": 0.51512
}

Semantic roles & 50–950 ramp

primary

#66D651

secondary

#843A92

accent

#43E5CB

background

#FCFEFC

surface

#F5FCF3

border

#CFD5CD

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66D651

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

Preview Lab → · Contrast checker → · Palette generator →