#66FD8F#66FD8F

#66FD8F is a very light, vivid green. Relative luminance 0.751; OKLCH L 88.7% C 0.198 H 149.5°. Best body text is #000000 at 16.01:1 contrast (WCAG AA passes).

Color values

HEX	#66FD8F
RGB	rgb(102, 253, 143)
HSL	hsl(136, 97%, 70%)
HSV	hsv(136, 60%, 99%)
CMYK	cmyk(59.7%, 0%, 43.5%, 0.8%)
CIE-LAB	lab(89.42, -63.08, 40.86)
CIE-LCH	lch(89.42, 75.16, 147.07°)
OKLab	oklab(88.73% -0.1705 0.1005)
OKLCH	oklch(88.73% 0.198 149.5)
XYZ	xyz(45.5594, 75.0541, 38.0672)
Luminance	0.7506 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FD8F #FD66D4

analogous

#89FD66 #66FD8F #66FDDA

triadic

#66FD8F #8F66FD #FD8F66

tetradic

#66FD8F #6689FD #FD66D4 #FDDA66

square

#66FD8F #6689FD #FD66D4 #FDDA66

split-complementary

#66FD8F #DA66FD #FD6689

monochromatic

#03E641 #2AFC63 #66FD8F #A2FEBB #DFFFE7

Accessibility & contrast

On white

1.31

#66FD8F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.01

#66FD8F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FD8F

16.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FD8F	#FFFFFF	#000000	##000000
##66FD8F	1.00	1.31	16.01	16.01
#FFFFFF	1.31	1.00	21.00	21.00
#000000	16.01	21.00	1.00	1.00
##000000	16.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE987

Deuteranopia (green-blind)

#EBDB96

Tritanopia (blue-blind)

#3AF9E2

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #66fd8f;
/* rgb */ color: rgb(102, 253, 143);
/* oklch */ color: oklch(88.7% 0.198 149.5);

Tailwind

colors: {
  custom: {
    50: '#9fffb1',
    500: '#66fd8f',
    950: '#000000',
  },
}

SCSS

$custom: #66fd8f;
$custom-light: #9fffb1;
$custom-dark: #000000;

JSON

{
  "hex": "#66fd8f",
  "rgb": {
    "r": 102,
    "g": 253,
    "b": 143
  },
  "hsl": {
    "h": 136.291,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.8873,
    "c": 0.19788,
    "h": 149.5
  },
  "luminance": 0.75059
}

Semantic roles & 50–950 ramp

primary

#66FD8F

secondary

#D82FAA

accent

#00A7E6

background

#FDFFFD

surface

#F7FFF8

border

#D0D7D1

text

#101811

muted

#818681

Preview Lab

Preview with #66FD8F

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

Preview Lab → · Contrast checker → · Palette generator →