#66EC79#66EC79

#66EC79 is a very light, vivid green. Relative luminance 0.642; OKLCH L 84.2% C 0.195 H 146.3°. Best body text is #000000 at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#66EC79
RGB	rgb(102, 236, 121)
HSL	hsl(129, 78%, 66%)
HSV	hsv(129, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 48.7%, 7.5%)
CIE-LAB	lab(84.07, -60.02, 44.70)
CIE-LCH	lch(84.07, 74.84, 143.32°)
OKLab	oklab(84.23% -0.1625 0.1083)
OKLCH	oklch(84.23% 0.195 146.3)
XYZ	xyz(38.9237, 64.1926, 28.4247)
Luminance	0.6420 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC79 #EC66D9

analogous

#96EC66 #66EC79 #66ECBC

triadic

#66EC79 #7966EC #EC7966

tetradic

#66EC79 #6696EC #EC66D9 #ECBC66

square

#66EC79 #6696EC #EC66D9 #ECBC66

split-complementary

#66EC79 #BC66EC #EC6696

monochromatic

#18C030 #30E549 #66EC79 #9CF3A9 #D3FAD8

Accessibility & contrast

On white

1.52

#66EC79 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.84

#66EC79 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC79

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC79	#FFFFFF	#000000	##000000
##66EC79	1.00	1.52	13.84	13.84
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.84	21.00	1.00	1.00
##000000	13.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD96F

Deuteranopia (green-blind)

#DECD81

Tritanopia (blue-blind)

#4AE7D1

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66ec79;
/* rgb */ color: rgb(102, 236, 121);
/* oklch */ color: oklch(84.2% 0.195 146.3);

Tailwind

colors: {
  custom: {
    50: '#9df3a2',
    500: '#66ec79',
    950: '#000000',
  },
}

SCSS

$custom: #66ec79;
$custom-light: #9df3a2;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec79",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 121
  },
  "hsl": {
    "h": 128.507,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.84231,
    "c": 0.1953,
    "h": 146.3
  },
  "luminance": 0.64196
}

Semantic roles & 50–950 ramp

primary

#66EC79

secondary

#BE38AB

accent

#0BBDDA

background

#FCFFFC

surface

#F6FEF5

border

#D0D6CF

text

#0F170F

muted

#808580

Preview Lab

Preview with #66EC79

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

Preview Lab → · Contrast checker → · Palette generator →