#66EFA4#66EFA4

#66EFA4 is a very light, vivid green. Relative luminance 0.672; OKLCH L 85.7% C 0.161 H 156.5°. Best body text is #000000 at 14.45:1 contrast (WCAG AA passes).

Color values

HEX	#66EFA4
RGB	rgb(102, 239, 164)
HSL	hsl(147, 81%, 67%)
HSV	hsv(147, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 31.4%, 6.3%)
CIE-LAB	lab(85.62, -54.06, 25.33)
CIE-LCH	lch(85.62, 59.70, 154.89°)
OKLab	oklab(85.73% -0.1472 0.0641)
OKLCH	oklch(85.73% 0.161 156.5)
XYZ	xyz(43.0432, 67.2340, 45.8239)
Luminance	0.6724 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFA4 #EF66B1

analogous

#6DEF66 #66EFA4 #66EFE8

triadic

#66EFA4 #A466EF #EFA466

tetradic

#66EFA4 #666DEF #EF66B1 #EFE866

square

#66EFA4 #666DEF #EF66B1 #EFE866

split-complementary

#66EFA4 #E866EF #EF666D

monochromatic

#15C665 #2FE983 #66EFA4 #9DF5C5 #D5FBE6

Accessibility & contrast

On white

1.45

#66EFA4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.45

#66EFA4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFA4

14.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFA4	#FFFFFF	#000000	##000000
##66EFA4	1.00	1.45	14.45	14.45
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.45	21.00	1.00	1.00
##000000	14.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EEDE9F

Deuteranopia (green-blind)

#DBD1A9

Tritanopia (blue-blind)

#34EDDB

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #66efa4;
/* rgb */ color: rgb(102, 239, 164);
/* oklch */ color: oklch(85.7% 0.161 156.5);

Tailwind

colors: {
  custom: {
    50: '#9cf5bf',
    500: '#66efa4',
    950: '#000000',
  },
}

SCSS

$custom: #66efa4;
$custom-light: #9cf5bf;
$custom-dark: #000000;

JSON

{
  "hex": "#66efa4",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 164
  },
  "hsl": {
    "h": 147.153,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.85726,
    "c": 0.16058,
    "h": 156.5
  },
  "luminance": 0.67238
}

Semantic roles & 50–950 ramp

primary

#66EFA4

secondary

#C33683

accent

#087DDD

background

#FCFFFD

surface

#F6FEF8

border

#D0D6D1

text

#0F1712

muted

#808582

Preview Lab

Preview with #66EFA4

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

Preview Lab → · Contrast checker → · Palette generator →