#66EC6C#66EC6C

#66EC6C is a very light, highly saturated green. Relative luminance 0.639; OKLCH L 84.1% C 0.206 H 144.2°. Best body text is #000000 at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#66EC6C
RGB	rgb(102, 236, 108)
HSL	hsl(123, 78%, 66%)
HSV	hsv(123, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 54.2%, 7.5%)
CIE-LAB	lab(83.91, -61.73, 50.61)
CIE-LCH	lch(83.91, 79.82, 140.66°)
OKLab	oklab(84.05% -0.1675 0.1207)
OKLCH	oklch(84.05% 0.206 144.2)
XYZ	xyz(38.1795, 63.8950, 24.5054)
Luminance	0.6390 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC6C #EC66E6

analogous

#A3EC66 #66EC6C #66ECAF

triadic

#66EC6C #6C66EC #EC6C66

tetradic

#66EC6C #66A3EC #EC66E6 #ECAF66

square

#66EC6C #66A3EC #EC66E6 #ECAF66

split-complementary

#66EC6C #AF66EC #EC66A3

monochromatic

#18C01F #30E538 #66EC6C #9CF3A0 #D3FAD5

Accessibility & contrast

On white

1.52

#66EC6C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.78

#66EC6C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC6C

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC6C	#FFFFFF	#000000	##000000
##66EC6C	1.00	1.52	13.78	13.78
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.78	21.00	1.00	1.00
##000000	13.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D860

Deuteranopia (green-blind)

#DFCD76

Tritanopia (blue-blind)

#4EE6CF

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66ec6c;
/* rgb */ color: rgb(102, 236, 108);
/* oklch */ color: oklch(84.1% 0.206 144.2);

Tailwind

colors: {
  custom: {
    50: '#9df399',
    500: '#66ec6c',
    950: '#000000',
  },
}

SCSS

$custom: #66ec6c;
$custom-light: #9df399;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec6c",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 108
  },
  "hsl": {
    "h": 122.687,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.84053,
    "c": 0.20645,
    "h": 144.2
  },
  "luminance": 0.63898
}

Semantic roles & 50–950 ramp

primary

#66EC6C

secondary

#BE38B8

accent

#0BD1DA

background

#FCFFFC

surface

#F6FEF5

border

#D0D6CF

text

#0F170E

muted

#80857F

Preview Lab

Preview with #66EC6C

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

Preview Lab → · Contrast checker → · Palette generator →