#66D843#66D843

#66D843 is a light, highly saturated green. Relative luminance 0.523; OKLCH L 78.6% C 0.212 H 139.3°. Best body text is #000000 at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#66D843
RGB	rgb(102, 216, 67)
HSL	hsl(106, 66%, 55%)
HSV	hsv(106, 69%, 85%)
CMYK	cmyk(52.8%, 0%, 69%, 15.3%)
CIE-LAB	lab(77.48, -58.60, 60.78)
CIE-LCH	lch(77.48, 84.42, 133.95°)
OKLab	oklab(78.64% -0.1611 0.1385)
OKLCH	oklch(78.64% 0.213 139.3)
XYZ	xyz(31.0472, 52.3393, 13.7755)
Luminance	0.5234 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D843 #B543D8

analogous

#B0D843 #66D843 #43D86A

triadic

#66D843 #4366D8 #D84366

tetradic

#66D843 #43B0D8 #B543D8 #D86A43

square

#66D843 #43B0D8 #B543D8 #D86A43

split-complementary

#66D843 #6A43D8 #D843B0

monochromatic

#34851C #48B826 #66D843 #8FE376 #B8EDA8

Accessibility & contrast

On white

1.83

#66D843 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.47

#66D843 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D843

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D843	#FFFFFF	#000000	##000000
##66D843	1.00	1.83	11.47	11.47
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.47	21.00	1.00	1.00
##000000	11.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC52C

Deuteranopia (green-blind)

#CFBC51

Tritanopia (blue-blind)

#5BD1BA

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #66d843;
/* rgb */ color: rgb(102, 216, 67);
/* oklch */ color: oklch(78.6% 0.212 139.3);

Tailwind

colors: {
  custom: {
    50: '#9ce57f',
    500: '#66d843',
    950: '#000000',
  },
}

SCSS

$custom: #66d843;
$custom-light: #9ce57f;
$custom-dark: #000000;

JSON

{
  "hex": "#66d843",
  "rgb": {
    "r": 102,
    "g": 216,
    "b": 67
  },
  "hsl": {
    "h": 105.906,
    "s": 65.639,
    "l": 55.49
  },
  "oklch": {
    "l": 0.78638,
    "c": 0.2125,
    "h": 139.3
  },
  "luminance": 0.52342
}

Semantic roles & 50–950 ramp

primary

#66D843

secondary

#77348C

accent

#3FE9C1

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66D843

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

Preview Lab → · Contrast checker → · Palette generator →