#66F997#66F997

#66F997 is a very light, vivid green. Relative luminance 0.728; OKLCH L 87.9% C 0.185 H 151.6°. Best body text is #000000 at 15.56:1 contrast (WCAG AA passes).

Color values

HEX	#66F997
RGB	rgb(102, 249, 151)
HSL	hsl(140, 92%, 69%)
HSV	hsv(140, 59%, 98%)
CMYK	cmyk(59%, 0%, 39.4%, 2.4%)
CIE-LAB	lab(88.36, -60.29, 35.55)
CIE-LCH	lch(88.36, 69.99, 149.47°)
OKLab	oklab(87.9% -0.1631 0.0883)
OKLCH	oklch(87.9% 0.186 151.6)
XYZ	xyz(44.9376, 72.8062, 40.9570)
Luminance	0.7281 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F997 #F966C8

analogous

#7FF966 #66F997 #66F9E1

triadic

#66F997 #9766F9 #F99766

tetradic

#66F997 #667FF9 #F966C8 #F9E166

square

#66F997 #667FF9 #F966C8 #F9E166

split-complementary

#66F997 #E166F9 #F9667F

monochromatic

#09DC4F #2BF76F #66F997 #A1FBBF #DCFEE7

Accessibility & contrast

On white

1.35

#66F997 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.56

#66F997 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F997

15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F997	#FFFFFF	#000000	##000000
##66F997	1.00	1.35	15.56	15.56
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.56	21.00	1.00	1.00
##000000	15.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FAE690

Deuteranopia (green-blind)

#E6D89D

Tritanopia (blue-blind)

#37F5E1

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #66f997;
/* rgb */ color: rgb(102, 249, 151);
/* oklch */ color: oklch(87.9% 0.185 151.6);

Tailwind

colors: {
  custom: {
    50: '#9efcb6',
    500: '#66f997',
    950: '#000000',
  },
}

SCSS

$custom: #66f997;
$custom-light: #9efcb6;
$custom-dark: #000000;

JSON

{
  "hex": "#66f997",
  "rgb": {
    "r": 102,
    "g": 249,
    "b": 151
  },
  "hsl": {
    "h": 140,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.87895,
    "c": 0.1855,
    "h": 151.6
  },
  "luminance": 0.72811
}

Semantic roles & 50–950 ramp

primary

#66F997

secondary

#D3309D

accent

#0099E6

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#101811

muted

#808681

Preview Lab

Preview with #66F997

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

Preview Lab → · Contrast checker → · Palette generator →