#66F191#66F191

#66F191 is a very light, vivid green. Relative luminance 0.678; OKLCH L 85.8% C 0.180 H 150.9°. Best body text is #000000 at 14.56:1 contrast (WCAG AA passes).

Color values

HEX	#66F191
RGB	rgb(102, 241, 145)
HSL	hsl(139, 83%, 67%)
HSV	hsv(139, 58%, 95%)
CMYK	cmyk(57.7%, 0%, 39.8%, 5.5%)
CIE-LAB	lab(85.89, -58.23, 35.30)
CIE-LCH	lch(85.89, 68.10, 148.77°)
OKLab	oklab(85.84% -0.1576 0.0876)
OKLCH	oklch(85.84% 0.18 150.9)
XYZ	xyz(42.0425, 67.7758, 37.6490)
Luminance	0.6778 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F191 #F166C6

analogous

#81F166 #66F191 #66F1D7

triadic

#66F191 #9166F1 #F19166

tetradic

#66F191 #6681F1 #F166C6 #F1D766

square

#66F191 #6681F1 #F166C6 #F1D766

split-complementary

#66F191 #D766F1 #F16681

monochromatic

#12CA4B #2EEC69 #66F191 #9EF6B9 #D6FBE2

Accessibility & contrast

On white

1.44

#66F191 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.56

#66F191 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F191

14.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F191	#FFFFFF	#000000	##000000
##66F191	1.00	1.44	14.56	14.56
#FFFFFF	1.44	1.00	21.00	21.00
#000000	14.56	21.00	1.00	1.00
##000000	14.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2DF8A

Deuteranopia (green-blind)

#DFD297

Tritanopia (blue-blind)

#3EEDD9

Achromatopsia (no color)

#D7D7D7

Design tokens & code

CSS

--color: #66f191;
/* rgb */ color: rgb(102, 241, 145);
/* oklch */ color: oklch(85.8% 0.180 150.9);

Tailwind

colors: {
  custom: {
    50: '#9df6b2',
    500: '#66f191',
    950: '#000000',
  },
}

SCSS

$custom: #66f191;
$custom-light: #9df6b2;
$custom-dark: #000000;

JSON

{
  "hex": "#66f191",
  "rgb": {
    "r": 102,
    "g": 241,
    "b": 145
  },
  "hsl": {
    "h": 138.561,
    "s": 83.234,
    "l": 67.255
  },
  "oklch": {
    "l": 0.85844,
    "c": 0.18031,
    "h": 150.9
  },
  "luminance": 0.6778
}

Semantic roles & 50–950 ramp

primary

#66F191

secondary

#C7349A

accent

#069CE0

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66F191

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

Preview Lab → · Contrast checker → · Palette generator →