#66EC6F#66EC6F

#66EC6F is a very light, highly saturated green. Relative luminance 0.640; OKLCH L 84.1% C 0.204 H 144.7°. Best body text is #000000 at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#66EC6F
RGB	rgb(102, 236, 111)
HSL	hsl(124, 78%, 66%)
HSV	hsv(124, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 53%, 7.5%)
CIE-LAB	lab(83.94, -61.35, 49.26)
CIE-LCH	lch(83.94, 78.68, 141.24°)
OKLab	oklab(84.09% -0.1664 0.1179)
OKLCH	oklch(84.09% 0.204 144.7)
XYZ	xyz(38.3419, 63.9599, 25.3608)
Luminance	0.6396 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC6F #EC66E3

analogous

#A0EC66 #66EC6F #66ECB2

triadic

#66EC6F #6F66EC #EC6F66

tetradic

#66EC6F #66A0EC #EC66E3 #ECB266

square

#66EC6F #66A0EC #EC66E3 #ECB266

split-complementary

#66EC6F #B266EC #EC66A0

monochromatic

#18C023 #30E53C #66EC6F #9CF3A2 #D3FAD5

Accessibility & contrast

On white

1.52

#66EC6F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.79

#66EC6F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC6F

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC6F	#FFFFFF	#000000	##000000
##66EC6F	1.00	1.52	13.79	13.79
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.79	21.00	1.00	1.00
##000000	13.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D964

Deuteranopia (green-blind)

#DFCD78

Tritanopia (blue-blind)

#4DE6D0

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66ec6f;
/* rgb */ color: rgb(102, 236, 111);
/* oklch */ color: oklch(84.1% 0.204 144.7);

Tailwind

colors: {
  custom: {
    50: '#9df39b',
    500: '#66ec6f',
    950: '#000000',
  },
}

SCSS

$custom: #66ec6f;
$custom-light: #9df39b;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec6f",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 111
  },
  "hsl": {
    "h": 124.03,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.84092,
    "c": 0.20394,
    "h": 144.7
  },
  "luminance": 0.63963
}

Semantic roles & 50–950 ramp

primary

#66EC6F

secondary

#BE38B5

accent

#0BCCDA

background

#FCFFFC

surface

#F6FEF5

border

#D0D6CF

text

#0F170E

muted

#80857F

Preview Lab

Preview with #66EC6F

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

Preview Lab → · Contrast checker → · Palette generator →