#66E978#66E978

#66E978 is a very light, vivid green. Relative luminance 0.625; OKLCH L 83.5% C 0.192 H 146.2°. Best body text is #000000 at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#66E978
RGB	rgb(102, 233, 120)
HSL	hsl(128, 75%, 66%)
HSV	hsv(128, 56%, 91%)
CMYK	cmyk(56.2%, 0%, 48.5%, 8.6%)
CIE-LAB	lab(83.16, -59.03, 44.05)
CIE-LCH	lch(83.16, 73.65, 143.27°)
OKLab	oklab(83.48% -0.1599 0.1068)
OKLCH	oklch(83.48% 0.192 146.2)
XYZ	xyz(38.0062, 62.4553, 27.8179)
Luminance	0.6246 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E978 #E966D7

analogous

#95E966 #66E978 #66E9B9

triadic

#66E978 #7866E9 #E97866

tetradic

#66E978 #6695E9 #E966D7 #E9B966

square

#66E978 #6695E9 #E966D7 #E9B966

split-complementary

#66E978 #B966E9 #E96695

monochromatic

#1BBA31 #30E149 #66E978 #9CF1A7 #D1F8D6

Accessibility & contrast

On white

1.56

#66E978 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.49

#66E978 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E978

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E978	#FFFFFF	#000000	##000000
##66E978	1.00	1.56	13.49	13.49
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.49	21.00	1.00	1.00
##000000	13.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ECD66F

Deuteranopia (green-blind)

#DBCB80

Tritanopia (blue-blind)

#4BE4CF

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #66e978;
/* rgb */ color: rgb(102, 233, 120);
/* oklch */ color: oklch(83.5% 0.192 146.2);

Tailwind

colors: {
  custom: {
    50: '#9cf1a1',
    500: '#66e978',
    950: '#000000',
  },
}

SCSS

$custom: #66e978;
$custom-light: #9cf1a1;
$custom-dark: #000000;

JSON

{
  "hex": "#66e978",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 120
  },
  "hsl": {
    "h": 128.244,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.83478,
    "c": 0.19226,
    "h": 146.2
  },
  "luminance": 0.62459
}

Semantic roles & 50–950 ramp

primary

#66E978

secondary

#B93AA8

accent

#0EBBD7

background

#FCFFFC

surface

#F6FEF5

border

#D0D6CF

text

#0F170F

muted

#808580

Preview Lab

Preview with #66E978

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

Preview Lab → · Contrast checker → · Palette generator →