#66FB99#66FB99

#66FB99 is a very light, vivid green. Relative luminance 0.741; OKLCH L 88.4% C 0.186 H 151.8°. Best body text is #000000 at 15.82:1 contrast (WCAG AA passes).

Color values

HEX	#66FB99
RGB	rgb(102, 251, 153)
HSL	hsl(141, 95%, 69%)
HSV	hsv(141, 59%, 98%)
CMYK	cmyk(59.4%, 0%, 39%, 1.6%)
CIE-LAB	lab(88.98, -60.71, 35.37)
CIE-LCH	lch(88.98, 70.27, 149.77°)
OKLab	oklab(88.42% -0.1643 0.088)
OKLCH	oklch(88.42% 0.186 151.8)
XYZ	xyz(45.7229, 74.1146, 42.0268)
Luminance	0.7412 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FB99 #FB66C8

analogous

#7EFB66 #66FB99 #66FBE4

triadic

#66FB99 #9966FB #FB9966

tetradic

#66FB99 #667EFB #FB66C8 #FBE466

square

#66FB99 #667EFB #FB66C8 #FBE466

split-complementary

#66FB99 #E466FB #FB667E

monochromatic

#06E151 #2AF971 #66FB99 #A2FDC1 #DDFEE9

Accessibility & contrast

On white

1.33

#66FB99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.82

#66FB99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FB99

15.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FB99	#FFFFFF	#000000	##000000
##66FB99	1.00	1.33	15.82	15.82
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.82	21.00	1.00	1.00
##000000	15.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE892

Deuteranopia (green-blind)

#E8DA9F

Tritanopia (blue-blind)

#35F8E3

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #66fb99;
/* rgb */ color: rgb(102, 251, 153);
/* oklch */ color: oklch(88.4% 0.186 151.8);

Tailwind

colors: {
  custom: {
    50: '#9efeb8',
    500: '#66fb99',
    950: '#000000',
  },
}

SCSS

$custom: #66fb99;
$custom-light: #9efeb8;
$custom-dark: #000000;

JSON

{
  "hex": "#66fb99",
  "rgb": {
    "r": 102,
    "g": 251,
    "b": 153
  },
  "hsl": {
    "h": 140.537,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.88415,
    "c": 0.18634,
    "h": 151.8
  },
  "luminance": 0.74119
}

Semantic roles & 50–950 ramp

primary

#66FB99

secondary

#D5309D

accent

#0097E6

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#101811

muted

#808681

Preview Lab

Preview with #66FB99

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

Preview Lab → · Contrast checker → · Palette generator →