#66BB4E#66BB4E

#66BB4E is a light, vivid green. Relative luminance 0.389; OKLCH L 71.4% C 0.168 H 139.3°. Best body text is #000000 at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#66BB4E
RGB	rgb(102, 187, 78)
HSL	hsl(107, 44%, 52%)
HSV	hsv(107, 58%, 73%)
CMYK	cmyk(45.5%, 0%, 58.3%, 26.7%)
CIE-LAB	lab(68.69, -46.29, 46.48)
CIE-LCH	lch(68.69, 65.60, 134.88°)
OKLab	oklab(71.44% -0.1271 0.1094)
OKLCH	oklch(71.44% 0.168 139.3)
XYZ	xyz(24.6240, 38.9139, 13.4199)
Luminance	0.3891 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BB4E #A34EBB

analogous

#9DBB4E #66BB4E #4EBB6D

triadic

#66BB4E #4E66BB #BB4E66

tetradic

#66BB4E #4E9DBB #A34EBB #BB6D4E

square

#66BB4E #4E9DBB #A34EBB #BB6D4E

split-complementary

#66BB4E #6D4EBB #BB4E9D

monochromatic

#366728 #4D9339 #66BB4E #8CCC7A #B2DDA6

Accessibility & contrast

On white

2.39

#66BB4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.78

#66BB4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BB4E

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BB4E	#FFFFFF	#000000	##000000
##66BB4E	1.00	2.39	8.78	8.78
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.78	21.00	1.00	1.00
##000000	8.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0AC43

Deuteranopia (green-blind)

#B4A556

Tritanopia (blue-blind)

#5FB5A3

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bb4e;
/* rgb */ color: rgb(102, 187, 78);
/* oklch */ color: oklch(71.4% 0.168 139.3);

Tailwind

colors: {
  custom: {
    50: '#98d083',
    500: '#66bb4e',
    950: '#000000',
  },
}

SCSS

$custom: #66bb4e;
$custom-light: #98d083;
$custom-dark: #000000;

JSON

{
  "hex": "#66bb4e",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 78
  },
  "hsl": {
    "h": 106.789,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.71444,
    "c": 0.16767,
    "h": 139.3
  },
  "luminance": 0.38915
}

Semantic roles & 50–950 ramp

primary

#66BB4E

secondary

#C09BCA

accent

#54D4B8

background

#F9FCF8

surface

#F2F9EF

border

#CCD2CA

text

#0E140B

muted

#7E827C

Preview Lab

Preview with #66BB4E

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

Preview Lab → · Contrast checker → · Palette generator →