#66DD4B#66DD4B

#66DD4B is a light, highly saturated green. Relative luminance 0.550; OKLCH L 80.0% C 0.213 H 140.2°. Best body text is #000000 at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#66DD4B
RGB	rgb(102, 221, 75)
HSL	hsl(109, 68%, 58%)
HSV	hsv(109, 66%, 87%)
CMYK	cmyk(53.8%, 0%, 66.1%, 13.3%)
CIE-LAB	lab(79.07, -59.76, 59.34)
CIE-LCH	lch(79.07, 84.21, 135.20°)
OKLab	oklab(79.96% -0.1638 0.1364)
OKLCH	oklch(79.96% 0.213 140.2)
XYZ	xyz(32.6045, 55.0430, 15.5615)
Luminance	0.5505 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DD4B #C24BDD

analogous

#AFDD4B #66DD4B #4BDD79

triadic

#66DD4B #4B66DD #DD4B66

tetradic

#66DD4B #4BAFDD #C24BDD #DD794B

square

#66DD4B #4BAFDD #C24BDD #DD794B

split-complementary

#66DD4B #794BDD #DD4BAF

monochromatic

#31921C #43C525 #66DD4B #92E77E #BEF0B2

Accessibility & contrast

On white

1.75

#66DD4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.01

#66DD4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DD4B

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DD4B	#FFFFFF	#000000	##000000
##66DD4B	1.00	1.75	12.01	12.01
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.01	21.00	1.00	1.00
##000000	12.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3CA37

Deuteranopia (green-blind)

#D4C058

Tritanopia (blue-blind)

#59D6BF

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #66dd4b;
/* rgb */ color: rgb(102, 221, 75);
/* oklch */ color: oklch(80.0% 0.213 140.2);

Tailwind

colors: {
  custom: {
    50: '#9ce884',
    500: '#66dd4b',
    950: '#000000',
  },
}

SCSS

$custom: #66dd4b;
$custom-light: #9ce884;
$custom-dark: #000000;

JSON

{
  "hex": "#66dd4b",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 75
  },
  "hsl": {
    "h": 108.904,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.79962,
    "c": 0.2132,
    "h": 140.2
  },
  "luminance": 0.55046
}

Semantic roles & 50–950 ramp

primary

#66DD4B

secondary

#853597

accent

#3DEBCB

background

#FCFEFB

surface

#F6FDF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66DD4B

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

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