#66BC4F#66BC4F

#66BC4F is a light, vivid green. Relative luminance 0.394; OKLCH L 71.7% C 0.168 H 139.5°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#66BC4F
RGB	rgb(102, 188, 79)
HSL	hsl(107, 45%, 52%)
HSV	hsv(107, 58%, 74%)
CMYK	cmyk(45.7%, 0%, 58%, 26.3%)
CIE-LAB	lab(69.01, -46.59, 46.39)
CIE-LCH	lch(69.01, 65.75, 135.12°)
OKLab	oklab(71.71% -0.1278 0.1093)
OKLCH	oklch(71.71% 0.168 139.5)
XYZ	xyz(24.8731, 39.3541, 13.6811)
Luminance	0.3936 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC4F #A54FBC

analogous

#9DBC4F #66BC4F #4FBC6E

triadic

#66BC4F #4F66BC #BC4F66

tetradic

#66BC4F #4F9DBC #A54FBC #BC6E4F

square

#66BC4F #4F9DBC #A54FBC #BC6E4F

split-complementary

#66BC4F #6E4FBC #BC4F9D

monochromatic

#366928 #4C9539 #66BC4F #8DCD7B #B3DEA8

Accessibility & contrast

On white

2.37

#66BC4F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#66BC4F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC4F

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC4F	#FFFFFF	#000000	##000000
##66BC4F	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)

#C1AD44

Deuteranopia (green-blind)

#B5A657

Tritanopia (blue-blind)

#5FB6A4

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc4f;
/* rgb */ color: rgb(102, 188, 79);
/* oklch */ color: oklch(71.7% 0.168 139.5);

Tailwind

colors: {
  custom: {
    50: '#98d184',
    500: '#66bc4f',
    950: '#000000',
  },
}

SCSS

$custom: #66bc4f;
$custom-light: #98d184;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc4f",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 79
  },
  "hsl": {
    "h": 107.339,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.71708,
    "c": 0.16817,
    "h": 139.5
  },
  "luminance": 0.39356
}

Semantic roles & 50–950 ramp

primary

#66BC4F

secondary

#C19CCB

accent

#53D5B9

background

#F9FCF8

surface

#F2F9EF

border

#CCD2CA

text

#0E140B

muted

#7E827C

Preview Lab

Preview with #66BC4F

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

Preview Lab → · Contrast checker → · Palette generator →