#66EF8F#66EF8F

#66EF8F is a very light, vivid green. Relative luminance 0.665; OKLCH L 85.3% C 0.179 H 150.6°. Best body text is #000000 at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#66EF8F
RGB	rgb(102, 239, 143)
HSL	hsl(138, 81%, 67%)
HSV	hsv(138, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 40.2%, 6.3%)
CIE-LAB	lab(85.27, -57.79, 35.48)
CIE-LCH	lch(85.27, 67.82, 148.45°)
OKLab	oklab(85.32% -0.1564 0.088)
OKLCH	oklch(85.32% 0.179 150.6)
XYZ	xyz(41.3009, 66.5371, 36.6477)
Luminance	0.6654 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EF8F #EF66C6

analogous

#82EF66 #66EF8F #66EFD3

triadic

#66EF8F #8F66EF #EF8F66

tetradic

#66EF8F #6682EF #EF66C6 #EFD366

square

#66EF8F #6682EF #EF66C6 #EFD366

split-complementary

#66EF8F #D366EF #EF6682

monochromatic

#15C64A #2FE966 #66EF8F #9DF5B8 #D5FBE0

Accessibility & contrast

On white

1.47

#66EF8F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.31

#66EF8F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EF8F

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EF8F	#FFFFFF	#000000	##000000
##66EF8F	1.00	1.47	14.31	14.31
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.31	21.00	1.00	1.00
##000000	14.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0DD88

Deuteranopia (green-blind)

#DED095

Tritanopia (blue-blind)

#40EBD7

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #66ef8f;
/* rgb */ color: rgb(102, 239, 143);
/* oklch */ color: oklch(85.3% 0.179 150.6);

Tailwind

colors: {
  custom: {
    50: '#9df5b1',
    500: '#66ef8f',
    950: '#000000',
  },
}

SCSS

$custom: #66ef8f;
$custom-light: #9df5b1;
$custom-dark: #000000;

JSON

{
  "hex": "#66ef8f",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 143
  },
  "hsl": {
    "h": 137.956,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.85321,
    "c": 0.17947,
    "h": 150.6
  },
  "luminance": 0.66541
}

Semantic roles & 50–950 ramp

primary

#66EF8F

secondary

#C33699

accent

#089EDD

background

#FCFFFD

surface

#F6FEF7

border

#D0D6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66EF8F

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

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