#66EF8A#66EF8A

#66EF8A is a very light, vivid green. Relative luminance 0.664; OKLCH L 85.2% C 0.184 H 149.5°. Best body text is #000000 at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#66EF8A
RGB	rgb(102, 239, 138)
HSL	hsl(136, 81%, 67%)
HSV	hsv(136, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 42.3%, 6.3%)
CIE-LAB	lab(85.19, -58.61, 37.87)
CIE-LCH	lch(85.19, 69.77, 147.13°)
OKLab	oklab(85.24% -0.1585 0.0934)
OKLCH	oklch(85.24% 0.184 149.5)
XYZ	xyz(40.9305, 66.3890, 34.6972)
Luminance	0.6639 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EF8A #EF66CB

analogous

#87EF66 #66EF8A #66EFCE

triadic

#66EF8A #8A66EF #EF8A66

tetradic

#66EF8A #6687EF #EF66CB #EFCE66

square

#66EF8A #6687EF #EF66CB #EFCE66

split-complementary

#66EF8A #CE66EF #EF6687

monochromatic

#15C643 #2FE960 #66EF8A #9DF5B4 #D5FBDF

Accessibility & contrast

On white

1.47

#66EF8A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.28

#66EF8A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EF8A

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EF8A	#FFFFFF	#000000	##000000
##66EF8A	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)

#F1DC83

Deuteranopia (green-blind)

#DED091

Tritanopia (blue-blind)

#42EBD6

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #66ef8a;
/* rgb */ color: rgb(102, 239, 138);
/* oklch */ color: oklch(85.2% 0.184 149.5);

Tailwind

colors: {
  custom: {
    50: '#9df5ad',
    500: '#66ef8a',
    950: '#000000',
  },
}

SCSS

$custom: #66ef8a;
$custom-light: #9df5ad;
$custom-dark: #000000;

JSON

{
  "hex": "#66ef8a",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 138
  },
  "hsl": {
    "h": 135.766,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.85235,
    "c": 0.18401,
    "h": 149.5
  },
  "luminance": 0.66393
}

Semantic roles & 50–950 ramp

primary

#66EF8A

secondary

#C3369E

accent

#08A5DD

background

#FCFFFD

surface

#F6FEF7

border

#D0D6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66EF8A

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

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