#66EF8B#66EF8B

#66EF8B is a very light, vivid green. Relative luminance 0.664; OKLCH L 85.3% C 0.183 H 149.7°. Best body text is #000000 at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#66EF8B
RGB	rgb(102, 239, 139)
HSL	hsl(136, 81%, 67%)
HSV	hsv(136, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 41.8%, 6.3%)
CIE-LAB	lab(85.21, -58.45, 37.39)
CIE-LCH	lch(85.21, 69.38, 147.39°)
OKLab	oklab(85.25% -0.1581 0.0923)
OKLCH	oklch(85.25% 0.183 149.7)
XYZ	xyz(41.0033, 66.4181, 35.0803)
Luminance	0.6642 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EF8B #EF66CA

analogous

#86EF66 #66EF8B #66EFCF

triadic

#66EF8B #8B66EF #EF8B66

tetradic

#66EF8B #6686EF #EF66CA #EFCF66

square

#66EF8B #6686EF #EF66CA #EFCF66

split-complementary

#66EF8B #CF66EF #EF6686

monochromatic

#15C645 #2FE961 #66EF8B #9DF5B5 #D5FBDF

Accessibility & contrast

On white

1.47

#66EF8B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.28

#66EF8B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EF8B

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EF8B	#FFFFFF	#000000	##000000
##66EF8B	1.00	1.47	14.28	14.28
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.28	21.00	1.00	1.00
##000000	14.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1DD84

Deuteranopia (green-blind)

#DED092

Tritanopia (blue-blind)

#42EBD6

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #66ef8b;
/* rgb */ color: rgb(102, 239, 139);
/* oklch */ color: oklch(85.3% 0.183 149.7);

Tailwind

colors: {
  custom: {
    50: '#9df5ae',
    500: '#66ef8b',
    950: '#000000',
  },
}

SCSS

$custom: #66ef8b;
$custom-light: #9df5ae;
$custom-dark: #000000;

JSON

{
  "hex": "#66ef8b",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 139
  },
  "hsl": {
    "h": 136.204,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.85252,
    "c": 0.1831,
    "h": 149.7
  },
  "luminance": 0.66422
}

Semantic roles & 50–950 ramp

primary

#66EF8B

secondary

#C3369D

accent

#08A4DD

background

#FCFFFD

surface

#F6FEF7

border

#D0D6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66EF8B

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

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