#66EC6B#66EC6B

#66EC6B is a very light, highly saturated green. Relative luminance 0.639; OKLCH L 84.0% C 0.207 H 144.1°. Best body text is #000000 at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#66EC6B
RGB	rgb(102, 236, 107)
HSL	hsl(122, 78%, 66%)
HSV	hsv(122, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 54.7%, 7.5%)
CIE-LAB	lab(83.90, -61.85, 51.05)
CIE-LCH	lch(83.90, 80.20, 140.47°)
OKLab	oklab(84.04% -0.1679 0.1216)
OKLCH	oklch(84.04% 0.207 144.1)
XYZ	xyz(38.1266, 63.8738, 24.2268)
Luminance	0.6388 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC6B #EC66E7

analogous

#A4EC66 #66EC6B #66ECAE

triadic

#66EC6B #6B66EC #EC6B66

tetradic

#66EC6B #66A4EC #EC66E7 #ECAE66

square

#66EC6B #66A4EC #EC66E7 #ECAE66

split-complementary

#66EC6B #AE66EC #EC66A4

monochromatic

#18C01E #30E536 #66EC6B #9CF3A0 #D3FAD4

Accessibility & contrast

On white

1.52

#66EC6B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.78

#66EC6B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC6B

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC6B	#FFFFFF	#000000	##000000
##66EC6B	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)

#F0D85F

Deuteranopia (green-blind)

#DFCD75

Tritanopia (blue-blind)

#4EE6CF

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66ec6b;
/* rgb */ color: rgb(102, 236, 107);
/* oklch */ color: oklch(84.0% 0.207 144.1);

Tailwind

colors: {
  custom: {
    50: '#9df398',
    500: '#66ec6b',
    950: '#000000',
  },
}

SCSS

$custom: #66ec6b;
$custom-light: #9df398;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec6b",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 107
  },
  "hsl": {
    "h": 122.239,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.84041,
    "c": 0.20728,
    "h": 144.1
  },
  "luminance": 0.63877
}

Semantic roles & 50–950 ramp

primary

#66EC6B

secondary

#BE38B9

accent

#0BD2DA

background

#FCFFFC

surface

#F6FEF5

border

#D0D6CF

text

#0F170E

muted

#80857F

Preview Lab

Preview with #66EC6B

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

Preview Lab → · Contrast checker → · Palette generator →