#66BC4D#66BC4D

#66BC4D is a light, vivid green. Relative luminance 0.393; OKLCH L 71.7% C 0.170 H 139.2°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#66BC4D
RGB	rgb(102, 188, 77)
HSL	hsl(106, 45%, 52%)
HSV	hsv(106, 59%, 74%)
CMYK	cmyk(45.7%, 0%, 59%, 26.3%)
CIE-LAB	lab(68.99, -46.81, 47.29)
CIE-LCH	lch(68.99, 66.54, 134.71°)
OKLab	oklab(71.68% -0.1285 0.111)
OKLCH	oklch(71.68% 0.17 139.2)
XYZ	xyz(24.8013, 39.3254, 13.3034)
Luminance	0.3933 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC4D #A34DBC

analogous

#9EBC4D #66BC4D #4DBC6B

triadic

#66BC4D #4D66BC #BC4D66

tetradic

#66BC4D #4D9EBC #A34DBC #BC6B4D

square

#66BC4D #4D9EBC #A34DBC #BC6B4D

split-complementary

#66BC4D #6B4DBC #BC4D9E

monochromatic

#366827 #4D9438 #66BC4D #8CCD79 #B2DDA6

Accessibility & contrast

On white

2.37

#66BC4D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#66BC4D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC4D

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC4D	#FFFFFF	#000000	##000000
##66BC4D	1.00	2.37	8.87	8.87
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.87	21.00	1.00	1.00
##000000	8.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AD41

Deuteranopia (green-blind)

#B5A655

Tritanopia (blue-blind)

#5FB6A4

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc4d;
/* rgb */ color: rgb(102, 188, 77);
/* oklch */ color: oklch(71.7% 0.170 139.2);

Tailwind

colors: {
  custom: {
    50: '#98d182',
    500: '#66bc4d',
    950: '#000000',
  },
}

SCSS

$custom: #66bc4d;
$custom-light: #98d182;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc4d",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 77
  },
  "hsl": {
    "h": 106.486,
    "s": 45.306,
    "l": 51.961
  },
  "oklch": {
    "l": 0.71684,
    "c": 0.16985,
    "h": 139.2
  },
  "luminance": 0.39327
}

Semantic roles & 50–950 ramp

primary

#66BC4D

secondary

#C09ACB

accent

#53D5B8

background

#F9FCF8

surface

#F2F9EF

border

#CCD2CA

text

#0E140B

muted

#7E827C

Preview Lab

Preview with #66BC4D

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

Preview Lab → · Contrast checker → · Palette generator →