#66D944#66D944

#66D944 is a light, highly saturated green. Relative luminance 0.529; OKLCH L 78.9% C 0.213 H 139.4°. Best body text is #000000 at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#66D944
RGB	rgb(102, 217, 68)
HSL	hsl(106, 66%, 56%)
HSV	hsv(106, 69%, 85%)
CMYK	cmyk(53%, 0%, 68.7%, 14.9%)
CIE-LAB	lab(77.80, -58.88, 60.72)
CIE-LCH	lch(77.80, 84.58, 134.12°)
OKLab	oklab(78.9% -0.1619 0.1385)
OKLCH	oklch(78.9% 0.213 139.4)
XYZ	xyz(31.3345, 52.8654, 14.0206)
Luminance	0.5287 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D944 #B744D9

analogous

#B0D944 #66D944 #44D96C

triadic

#66D944 #4466D9 #D94466

tetradic

#66D944 #44B0D9 #B744D9 #D96C44

square

#66D944 #44B0D9 #B744D9 #D96C44

split-complementary

#66D944 #6C44D9 #D944B0

monochromatic

#34871B #48BA26 #66D944 #90E377 #B9EEAA

Accessibility & contrast

On white

1.81

#66D944 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.57

#66D944 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D944

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D944	#FFFFFF	#000000	##000000
##66D944	1.00	1.81	11.57	11.57
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.57	21.00	1.00	1.00
##000000	11.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC62E

Deuteranopia (green-blind)

#D0BD52

Tritanopia (blue-blind)

#5AD2BB

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66d944;
/* rgb */ color: rgb(102, 217, 68);
/* oklch */ color: oklch(78.9% 0.213 139.4);

Tailwind

colors: {
  custom: {
    50: '#9ce680',
    500: '#66d944',
    950: '#000000',
  },
}

SCSS

$custom: #66d944;
$custom-light: #9ce680;
$custom-dark: #000000;

JSON

{
  "hex": "#66d944",
  "rgb": {
    "r": 102,
    "g": 217,
    "b": 68
  },
  "hsl": {
    "h": 106.309,
    "s": 66.222,
    "l": 55.882
  },
  "oklch": {
    "l": 0.78898,
    "c": 0.21305,
    "h": 139.4
  },
  "luminance": 0.52868
}

Semantic roles & 50–950 ramp

primary

#66D944

secondary

#79348D

accent

#3FE9C2

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66D944

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

Preview Lab → · Contrast checker → · Palette generator →