#66FE99#66FE99

#66FE99 is a very light, vivid green. Relative luminance 0.760; OKLCH L 89.1% C 0.190 H 151.5°. Best body text is #000000 at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#66FE99
RGB	rgb(102, 254, 153)
HSL	hsl(140, 99%, 70%)
HSV	hsv(140, 60%, 100%)
CMYK	cmyk(59.8%, 0%, 39.8%, 0.4%)
CIE-LAB	lab(89.86, -61.84, 36.54)
CIE-LCH	lch(89.86, 71.83, 149.43°)
OKLab	oklab(89.14% -0.1673 0.0907)
OKLCH	oklch(89.14% 0.19 151.5)
XYZ	xyz(46.6675, 76.0037, 42.3417)
Luminance	0.7601 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FE99 #FE66CB

analogous

#7FFE66 #66FE99 #66FEE5

triadic

#66FE99 #9966FE #FE9966

tetradic

#66FE99 #667FFE #FE66CB #FEE566

square

#66FE99 #667FFE #FE66CB #FEE566

split-complementary

#66FE99 #E566FE #FE667F

monochromatic

#02E84F #29FE70 #66FE99 #A3FEC2 #E0FFEA

Accessibility & contrast

On white

1.30

#66FE99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.20

#66FE99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FE99

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FE99	#FFFFFF	#000000	##000000
##66FE99	1.00	1.30	16.20	16.20
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.20	21.00	1.00	1.00
##000000	16.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA92

Deuteranopia (green-blind)

#EBDCA0

Tritanopia (blue-blind)

#34FAE5

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #66fe99;
/* rgb */ color: rgb(102, 254, 153);
/* oklch */ color: oklch(89.1% 0.190 151.5);

Tailwind

colors: {
  custom: {
    50: '#9fffb8',
    500: '#66fe99',
    950: '#000000',
  },
}

SCSS

$custom: #66fe99;
$custom-light: #9fffb8;
$custom-dark: #000000;

JSON

{
  "hex": "#66fe99",
  "rgb": {
    "r": 102,
    "g": 254,
    "b": 153
  },
  "hsl": {
    "h": 140.132,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.89142,
    "c": 0.19027,
    "h": 151.5
  },
  "luminance": 0.76008
}

Semantic roles & 50–950 ramp

primary

#66FE99

secondary

#D92FA0

accent

#0098E6

background

#FDFFFD

surface

#F7FFF8

border

#D0D7D1

text

#101811

muted

#818681

Preview Lab

Preview with #66FE99

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

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