#66DB4B#66DB4B

#66DB4B is a light, highly saturated green. Relative luminance 0.540; OKLCH L 79.5% C 0.211 H 140.1°. Best body text is #000000 at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#66DB4B
RGB	rgb(102, 219, 75)
HSL	hsl(109, 67%, 58%)
HSV	hsv(109, 66%, 86%)
CMYK	cmyk(53.4%, 0%, 65.8%, 14.1%)
CIE-LAB	lab(78.46, -59.02, 58.68)
CIE-LCH	lch(78.46, 83.23, 135.16°)
OKLab	oklab(79.46% -0.1618 0.1351)
OKLCH	oklch(79.46% 0.211 140.1)
XYZ	xyz(32.0796, 53.9932, 15.3865)
Luminance	0.5400 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DB4B #C04BDB

analogous

#AEDB4B #66DB4B #4BDB78

triadic

#66DB4B #4B66DB #DB4B66

tetradic

#66DB4B #4BAEDB #C04BDB #DB784B

square

#66DB4B #4BAEDB #C04BDB #DB784B

split-complementary

#66DB4B #784BDB #DB4BAE

monochromatic

#328F1D #44C227 #66DB4B #91E57E #BDEFB1

Accessibility & contrast

On white

1.78

#66DB4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.80

#66DB4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DB4B

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DB4B	#FFFFFF	#000000	##000000
##66DB4B	1.00	1.78	11.80	11.80
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.80	21.00	1.00	1.00
##000000	11.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C838

Deuteranopia (green-blind)

#D2BE58

Tritanopia (blue-blind)

#59D4BD

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #66db4b;
/* rgb */ color: rgb(102, 219, 75);
/* oklch */ color: oklch(79.5% 0.211 140.1);

Tailwind

colors: {
  custom: {
    50: '#9ce784',
    500: '#66db4b',
    950: '#000000',
  },
}

SCSS

$custom: #66db4b;
$custom-light: #9ce784;
$custom-dark: #000000;

JSON

{
  "hex": "#66db4b",
  "rgb": {
    "r": 102,
    "g": 219,
    "b": 75
  },
  "hsl": {
    "h": 108.75,
    "s": 66.667,
    "l": 57.647
  },
  "oklch": {
    "l": 0.79461,
    "c": 0.21078,
    "h": 140.1
  },
  "luminance": 0.53996
}

Semantic roles & 50–950 ramp

primary

#66DB4B

secondary

#833694

accent

#3EEAC9

background

#FCFEFB

surface

#F6FDF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66DB4B

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

Preview Lab → · Contrast checker → · Palette generator →