#66D576#66D576

#66D576 is a light, vivid green. Relative luminance 0.517; OKLCH L 78.5% C 0.167 H 146.7°. Best body text is #000000 at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#66D576
RGB	rgb(102, 213, 118)
HSL	hsl(129, 57%, 62%)
HSV	hsv(129, 52%, 84%)
CMYK	cmyk(52.1%, 0%, 44.6%, 16.5%)
CIE-LAB	lab(77.11, -51.56, 37.41)
CIE-LCH	lch(77.11, 63.70, 144.03°)
OKLab	oklab(78.51% -0.1398 0.0917)
OKLCH	oklch(78.51% 0.167 146.7)
XYZ	xyz(32.5418, 51.7186, 25.4039)
Luminance	0.5172 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D576 #D566C5

analogous

#8ED566 #66D576 #66D5AE

triadic

#66D576 #7666D5 #D57666

tetradic

#66D576 #668ED5 #D566C5 #D5AE66

square

#66D576 #668ED5 #D566C5 #D5AE66

split-complementary

#66D576 #AE66D5 #D5668E

monochromatic

#299739 #37C74B #66D576 #96E2A1 #C6EFCC

Accessibility & contrast

On white

1.85

#66D576 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.34

#66D576 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D576

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D576	#FFFFFF	#000000	##000000
##66D576	1.00	1.85	11.34	11.34
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.34	21.00	1.00	1.00
##000000	11.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C56F

Deuteranopia (green-blind)

#C8BA7C

Tritanopia (blue-blind)

#52D1BE

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66d576;
/* rgb */ color: rgb(102, 213, 118);
/* oklch */ color: oklch(78.5% 0.167 146.7);

Tailwind

colors: {
  custom: {
    50: '#99e39f',
    500: '#66d576',
    950: '#000000',
  },
}

SCSS

$custom: #66d576;
$custom-light: #99e39f;
$custom-dark: #000000;

JSON

{
  "hex": "#66d576",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 118
  },
  "hsl": {
    "h": 128.649,
    "s": 56.923,
    "l": 61.765
  },
  "oklch": {
    "l": 0.78508,
    "c": 0.16718,
    "h": 146.7
  },
  "luminance": 0.51721
}

Semantic roles & 50–950 ramp

primary

#66D576

secondary

#9C438F

accent

#21ADC4

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0F150E

muted

#80847F

Preview Lab

Preview with #66D576

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

Preview Lab → · Contrast checker → · Palette generator →