#66E778#66E778

#66E778 is a very light, vivid green. Relative luminance 0.613; OKLCH L 83.0% C 0.190 H 146.3°. Best body text is #000000 at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#66E778
RGB	rgb(102, 231, 120)
HSL	hsl(128, 73%, 65%)
HSV	hsv(128, 56%, 91%)
CMYK	cmyk(55.8%, 0%, 48.1%, 9.4%)
CIE-LAB	lab(82.56, -58.27, 43.30)
CIE-LCH	lch(82.56, 72.60, 143.38°)
OKLab	oklab(82.99% -0.1578 0.1051)
OKLCH	oklch(82.99% 0.19 146.3)
XYZ	xyz(37.4432, 61.3294, 27.6302)
Luminance	0.6133 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E778 #E766D5

analogous

#94E766 #66E778 #66E7B8

triadic

#66E778 #7866E7 #E77866

tetradic

#66E778 #6694E7 #E766D5 #E7B866

square

#66E778 #6694E7 #E766D5 #E7B866

split-complementary

#66E778 #B866E7 #E76694

monochromatic

#1DB632 #31DF49 #66E778 #9BEFA7 #D0F8D5

Accessibility & contrast

On white

1.58

#66E778 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.27

#66E778 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E778

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E778	#FFFFFF	#000000	##000000
##66E778	1.00	1.58	13.27	13.27
#FFFFFF	1.58	1.00	21.00	21.00
#000000	13.27	21.00	1.00	1.00
##000000	13.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD56F

Deuteranopia (green-blind)

#D9C980

Tritanopia (blue-blind)

#4CE2CD

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #66e778;
/* rgb */ color: rgb(102, 231, 120);
/* oklch */ color: oklch(83.0% 0.190 146.3);

Tailwind

colors: {
  custom: {
    50: '#9cefa1',
    500: '#66e778',
    950: '#000000',
  },
}

SCSS

$custom: #66e778;
$custom-light: #9cefa1;
$custom-dark: #000000;

JSON

{
  "hex": "#66e778",
  "rgb": {
    "r": 102,
    "g": 231,
    "b": 120
  },
  "hsl": {
    "h": 128.372,
    "s": 72.881,
    "l": 65.294
  },
  "oklch": {
    "l": 0.82985,
    "c": 0.18964,
    "h": 146.3
  },
  "luminance": 0.61333
}

Semantic roles & 50–950 ramp

primary

#66E778

secondary

#B63BA5

accent

#11BAD5

background

#FCFFFC

surface

#F6FEF5

border

#D0D6CF

text

#0F170F

muted

#808580

Preview Lab

Preview with #66E778

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

Preview Lab → · Contrast checker → · Palette generator →