#66BC4C#66BC4C

#66BC4C is a light, vivid green. Relative luminance 0.393; OKLCH L 71.7% C 0.171 H 139.0°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#66BC4C
RGB	rgb(102, 188, 76)
HSL	hsl(106, 46%, 52%)
HSV	hsv(106, 60%, 74%)
CMYK	cmyk(45.7%, 0%, 59.6%, 26.3%)
CIE-LAB	lab(68.98, -46.92, 47.73)
CIE-LCH	lch(68.98, 66.93, 134.51°)
OKLab	oklab(71.67% -0.1289 0.1119)
OKLCH	oklch(71.67% 0.171 139)
XYZ	xyz(24.7663, 39.3114, 13.1189)
Luminance	0.3931 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC4C #A24CBC

analogous

#9EBC4C #66BC4C #4CBC6A

triadic

#66BC4C #4C66BC #BC4C66

tetradic

#66BC4C #4C9EBC #A24CBC #BC6A4C

square

#66BC4C #4C9EBC #A24CBC #BC6A4C

split-complementary

#66BC4C #6A4CBC #BC4C9E

monochromatic

#366727 #4D9437 #66BC4C #8CCD79 #B2DDA5

Accessibility & contrast

On white

2.37

#66BC4C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.86

#66BC4C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC4C

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC4C	#FFFFFF	#000000	##000000
##66BC4C	1.00	2.37	8.86	8.86
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.86	21.00	1.00	1.00
##000000	8.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AD40

Deuteranopia (green-blind)

#B6A655

Tritanopia (blue-blind)

#5FB6A4

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc4c;
/* rgb */ color: rgb(102, 188, 76);
/* oklch */ color: oklch(71.7% 0.171 139.0);

Tailwind

colors: {
  custom: {
    50: '#98d182',
    500: '#66bc4c',
    950: '#000000',
  },
}

SCSS

$custom: #66bc4c;
$custom-light: #98d182;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc4c",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 76
  },
  "hsl": {
    "h": 106.071,
    "s": 45.528,
    "l": 51.765
  },
  "oklch": {
    "l": 0.71673,
    "c": 0.17069,
    "h": 139
  },
  "luminance": 0.39313
}

Semantic roles & 50–950 ramp

primary

#66BC4C

secondary

#BF99CA

accent

#53D5B7

background

#F9FCF8

surface

#F2F9EF

border

#CCD2CA

text

#0E140B

muted

#7E827C

Preview Lab

Preview with #66BC4C

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

Preview Lab → · Contrast checker → · Palette generator →