#66E449#66E449

#66E449 is a light, highly saturated green. Relative luminance 0.588; OKLCH L 81.7% C 0.223 H 140.2°. Best body text is #000000 at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#66E449
RGB	rgb(102, 228, 73)
HSL	hsl(109, 74%, 59%)
HSV	hsv(109, 68%, 89%)
CMYK	cmyk(55.3%, 0%, 68%, 10.6%)
CIE-LAB	lab(81.18, -62.46, 62.37)
CIE-LCH	lch(81.18, 88.26, 135.04°)
OKLab	oklab(81.7% -0.1712 0.1426)
OKLCH	oklch(81.7% 0.223 140.2)
XYZ	xyz(34.4240, 58.7897, 15.8356)
Luminance	0.5879 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E449 #C749E4

analogous

#B4E449 #66E449 #49E47A

triadic

#66E449 #4966E4 #E44966

tetradic

#66E449 #49B4E4 #C749E4 #E47A49

square

#66E449 #49B4E4 #C749E4 #E47A49

split-complementary

#66E449 #7A49E4 #E449B4

monochromatic

#309C17 #40D11F #66E449 #93EC7E #C0F4B4

Accessibility & contrast

On white

1.65

#66E449 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.76

#66E449 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E449

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E449	#FFFFFF	#000000	##000000
##66E449	1.00	1.65	12.76	12.76
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.76	21.00	1.00	1.00
##000000	12.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD032

Deuteranopia (green-blind)

#DAC657

Tritanopia (blue-blind)

#57DDC5

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #66e449;
/* rgb */ color: rgb(102, 228, 73);
/* oklch */ color: oklch(81.7% 0.223 140.2);

Tailwind

colors: {
  custom: {
    50: '#9ded83',
    500: '#66e449',
    950: '#000000',
  },
}

SCSS

$custom: #66e449;
$custom-light: #9ded83;
$custom-dark: #000000;

JSON

{
  "hex": "#66e449",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 73
  },
  "hsl": {
    "h": 108.774,
    "s": 74.163,
    "l": 59.02
  },
  "oklch": {
    "l": 0.81696,
    "c": 0.22282,
    "h": 140.2
  },
  "luminance": 0.58793
}

Semantic roles & 50–950 ramp

primary

#66E449

secondary

#8B329F

accent

#37F1CE

background

#FCFFFB

surface

#F6FEF2

border

#D0D6CC

text

#10160B

muted

#80857E

Preview Lab

Preview with #66E449

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

Preview Lab → · Contrast checker → · Palette generator →