#66EF99#66EF99

#66EF99 is a very light, vivid green. Relative luminance 0.669; OKLCH L 85.5% C 0.170 H 153.2°. Best body text is #000000 at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#66EF99
RGB	rgb(102, 239, 153)
HSL	hsl(142, 81%, 67%)
HSV	hsv(142, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 36%, 6.3%)
CIE-LAB	lab(85.43, -56.08, 30.67)
CIE-LCH	lch(85.43, 63.92, 151.33°)
OKLab	oklab(85.51% -0.1521 0.0768)
OKLCH	oklch(85.51% 0.17 153.2)
XYZ	xyz(42.0925, 66.8537, 40.8167)
Luminance	0.6686 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EF99 #EF66BC

analogous

#78EF66 #66EF99 #66EFDE

triadic

#66EF99 #9966EF #EF9966

tetradic

#66EF99 #6678EF #EF66BC #EFDE66

square

#66EF99 #6678EF #EF66BC #EFDE66

split-complementary

#66EF99 #DE66EF #EF6678

monochromatic

#15C657 #2FE974 #66EF99 #9DF5BE #D5FBE3

Accessibility & contrast

On white

1.46

#66EF99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.37

#66EF99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EF99

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EF99	#FFFFFF	#000000	##000000
##66EF99	1.00	1.46	14.37	14.37
#FFFFFF	1.46	1.00	21.00	21.00
#000000	14.37	21.00	1.00	1.00
##000000	14.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFDD93

Deuteranopia (green-blind)

#DCD09E

Tritanopia (blue-blind)

#3BECD9

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #66ef99;
/* rgb */ color: rgb(102, 239, 153);
/* oklch */ color: oklch(85.5% 0.170 153.2);

Tailwind

colors: {
  custom: {
    50: '#9cf5b7',
    500: '#66ef99',
    950: '#000000',
  },
}

SCSS

$custom: #66ef99;
$custom-light: #9cf5b7;
$custom-dark: #000000;

JSON

{
  "hex": "#66ef99",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 153
  },
  "hsl": {
    "h": 142.336,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.85505,
    "c": 0.17039,
    "h": 153.2
  },
  "luminance": 0.66858
}

Semantic roles & 50–950 ramp

primary

#66EF99

secondary

#C3368F

accent

#088EDD

background

#FCFFFD

surface

#F6FEF8

border

#D0D6D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66EF99

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

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