#66BF4E#66BF4E

#66BF4E is a light, vivid green. Relative luminance 0.406; OKLCH L 72.5% C 0.173 H 139.5°. Best body text is #000000 at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#66BF4E
RGB	rgb(102, 191, 78)
HSL	hsl(107, 47%, 53%)
HSV	hsv(107, 59%, 75%)
CMYK	cmyk(46.6%, 0%, 59.2%, 25.1%)
CIE-LAB	lab(69.92, -47.93, 47.90)
CIE-LCH	lch(69.92, 67.76, 135.01°)
OKLab	oklab(72.45% -0.1315 0.1124)
OKLCH	oklch(72.45% 0.173 139.5)
XYZ	xyz(25.4845, 40.6347, 13.7067)
Luminance	0.4064 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BF4E #A74EBF

analogous

#9EBF4E #66BF4E #4EBF6F

triadic

#66BF4E #4E66BF #BF4E66

tetradic

#66BF4E #4E9EBF #A74EBF #BF6F4E

square

#66BF4E #4E9EBF #A74EBF #BF6F4E

split-complementary

#66BF4E #6F4EBF #BF4E9E

monochromatic

#366C27 #4C9937 #66BF4E #8DCF7B #B4E0A8

Accessibility & contrast

On white

2.30

#66BF4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.13

#66BF4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BF4E

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BF4E	#FFFFFF	#000000	##000000
##66BF4E	1.00	2.30	9.13	9.13
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.13	21.00	1.00	1.00
##000000	9.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4B042

Deuteranopia (green-blind)

#B8A857

Tritanopia (blue-blind)

#5FB9A7

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66bf4e;
/* rgb */ color: rgb(102, 191, 78);
/* oklch */ color: oklch(72.5% 0.173 139.5);

Tailwind

colors: {
  custom: {
    50: '#98d383',
    500: '#66bf4e',
    950: '#000000',
  },
}

SCSS

$custom: #66bf4e;
$custom-light: #98d383;
$custom-dark: #000000;

JSON

{
  "hex": "#66bf4e",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 78
  },
  "hsl": {
    "h": 107.257,
    "s": 46.888,
    "l": 52.745
  },
  "oklch": {
    "l": 0.72452,
    "c": 0.17303,
    "h": 139.5
  },
  "luminance": 0.40636
}

Semantic roles & 50–950 ramp

primary

#66BF4E

secondary

#C29CCD

accent

#51D7BA

background

#F9FDF8

surface

#F2FAEF

border

#CCD3CA

text

#0E140B

muted

#7E837C

Preview Lab

Preview with #66BF4E

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

Preview Lab → · Contrast checker → · Palette generator →