#66EE91#66EE91

#66EE91 is a very light, vivid green. Relative luminance 0.660; OKLCH L 85.1% C 0.176 H 151.2°. Best body text is #000000 at 14.20:1 contrast (WCAG AA passes).

Color values

HEX	#66EE91
RGB	rgb(102, 238, 145)
HSL	hsl(139, 80%, 67%)
HSV	hsv(139, 57%, 93%)
CMYK	cmyk(57.1%, 0%, 39.1%, 6.7%)
CIE-LAB	lab(85.00, -57.07, 34.13)
CIE-LCH	lch(85.00, 66.50, 149.12°)
OKLab	oklab(85.11% -0.1545 0.0849)
OKLCH	oklch(85.11% 0.176 151.2)
XYZ	xyz(41.1618, 66.0144, 37.3555)
Luminance	0.6602 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EE91 #EE66C3

analogous

#7FEE66 #66EE91 #66EED5

triadic

#66EE91 #9166EE #EE9166

tetradic

#66EE91 #667FEE #EE66C3 #EED566

square

#66EE91 #667FEE #EE66C3 #EED566

split-complementary

#66EE91 #D566EE #EE667F

monochromatic

#16C44D #2FE869 #66EE91 #9DF4B9 #D4FAE0

Accessibility & contrast

On white

1.48

#66EE91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.20

#66EE91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EE91

14.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EE91	#FFFFFF	#000000	##000000
##66EE91	1.00	1.48	14.20	14.20
#FFFFFF	1.48	1.00	21.00	21.00
#000000	14.20	21.00	1.00	1.00
##000000	14.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFDC8B

Deuteranopia (green-blind)

#DDCF97

Tritanopia (blue-blind)

#40EBD7

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #66ee91;
/* rgb */ color: rgb(102, 238, 145);
/* oklch */ color: oklch(85.1% 0.176 151.2);

Tailwind

colors: {
  custom: {
    50: '#9cf4b2',
    500: '#66ee91',
    950: '#000000',
  },
}

SCSS

$custom: #66ee91;
$custom-light: #9cf4b2;
$custom-dark: #000000;

JSON

{
  "hex": "#66ee91",
  "rgb": {
    "r": 102,
    "g": 238,
    "b": 145
  },
  "hsl": {
    "h": 138.971,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.85113,
    "c": 0.17631,
    "h": 151.2
  },
  "luminance": 0.66018
}

Semantic roles & 50–950 ramp

primary

#66EE91

secondary

#C23796

accent

#099ADC

background

#FCFFFD

surface

#F6FEF8

border

#D0D6D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66EE91

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

Preview Lab → · Contrast checker → · Palette generator →