#66C448#66C448

#66C448 is a light, vivid green. Relative luminance 0.428; OKLCH L 73.6% C 0.184 H 138.9°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#66C448
RGB	rgb(102, 196, 72)
HSL	hsl(105, 51%, 53%)
HSV	hsv(105, 63%, 77%)
CMYK	cmyk(48%, 0%, 63.3%, 23.1%)
CIE-LAB	lab(71.40, -50.54, 52.22)
CIE-LCH	lch(71.40, 72.67, 134.06°)
OKLab	oklab(73.65% -0.139 0.1211)
OKLCH	oklch(73.65% 0.184 138.9)
XYZ	xyz(26.3881, 42.7707, 12.9947)
Luminance	0.4277 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C448 #A648C4

analogous

#A4C448 #66C448 #48C468

triadic

#66C448 #4866C4 #C44866

tetradic

#66C448 #48A4C4 #A648C4 #C46848

square

#66C448 #48A4C4 #A648C4 #C46848

split-complementary

#66C448 #6848C4 #C448A4

monochromatic

#366E23 #4C9C32 #66C448 #8DD376 #B3E2A5

Accessibility & contrast

On white

2.20

#66C448 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#66C448 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C448

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C448	#FFFFFF	#000000	##000000
##66C448	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAB439

Deuteranopia (green-blind)

#BDAC52

Tritanopia (blue-blind)

#5EBEAA

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #66c448;
/* rgb */ color: rgb(102, 196, 72);
/* oklch */ color: oklch(73.6% 0.184 138.9);

Tailwind

colors: {
  custom: {
    50: '#99d680',
    500: '#66c448',
    950: '#000000',
  },
}

SCSS

$custom: #66c448;
$custom-light: #99d680;
$custom-dark: #000000;

JSON

{
  "hex": "#66c448",
  "rgb": {
    "r": 102,
    "g": 196,
    "b": 72
  },
  "hsl": {
    "h": 105.484,
    "s": 51.24,
    "l": 52.549
  },
  "oklch": {
    "l": 0.73648,
    "c": 0.18432,
    "h": 138.9
  },
  "luminance": 0.42773
}

Semantic roles & 50–950 ramp

primary

#66C448

secondary

#C299CF

accent

#4DDBB8

background

#F9FDF8

surface

#F2FAEF

border

#CCD3CA

text

#0E140A

muted

#7E837C

Preview Lab

Preview with #66C448

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

Preview Lab → · Contrast checker → · Palette generator →