#66EA78#66EA78

#66EA78 is a very light, vivid green. Relative luminance 0.630; OKLCH L 83.7% C 0.194 H 146.2°. Best body text is #000000 at 13.61:1 contrast (WCAG AA passes).

Color values

HEX	#66EA78
RGB	rgb(102, 234, 120)
HSL	hsl(128, 76%, 66%)
HSV	hsv(128, 56%, 92%)
CMYK	cmyk(56.4%, 0%, 48.7%, 8.2%)
CIE-LAB	lab(83.45, -59.41, 44.42)
CIE-LCH	lch(83.45, 74.18, 143.21°)
OKLab	oklab(83.72% -0.1609 0.1077)
OKLCH	oklch(83.72% 0.194 146.2)
XYZ	xyz(38.2901, 63.0230, 27.9125)
Luminance	0.6303 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EA78 #EA66D8

analogous

#96EA66 #66EA78 #66EABA

triadic

#66EA78 #7866EA #EA7866

tetradic

#66EA78 #6696EA #EA66D8 #EABA66

square

#66EA78 #6696EA #EA66D8 #EABA66

split-complementary

#66EA78 #BA66EA #EA6696

monochromatic

#1ABC30 #30E349 #66EA78 #9CF1A7 #D2F9D7

Accessibility & contrast

On white

1.54

#66EA78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.61

#66EA78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EA78

13.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EA78	#FFFFFF	#000000	##000000
##66EA78	1.00	1.54	13.61	13.61
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.61	21.00	1.00	1.00
##000000	13.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD76F

Deuteranopia (green-blind)

#DCCB80

Tritanopia (blue-blind)

#4BE5CF

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #66ea78;
/* rgb */ color: rgb(102, 234, 120);
/* oklch */ color: oklch(83.7% 0.194 146.2);

Tailwind

colors: {
  custom: {
    50: '#9cf2a1',
    500: '#66ea78',
    950: '#000000',
  },
}

SCSS

$custom: #66ea78;
$custom-light: #9cf2a1;
$custom-dark: #000000;

JSON

{
  "hex": "#66ea78",
  "rgb": {
    "r": 102,
    "g": 234,
    "b": 120
  },
  "hsl": {
    "h": 128.182,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.83724,
    "c": 0.19357,
    "h": 146.2
  },
  "luminance": 0.63026
}

Semantic roles & 50–950 ramp

primary

#66EA78

secondary

#BB39A9

accent

#0DBCD8

background

#FCFFFC

surface

#F6FEF5

border

#D0D6CF

text

#0F170F

muted

#808580

Preview Lab

Preview with #66EA78

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

Preview Lab → · Contrast checker → · Palette generator →