#66D43D#66D43D

#66D43D is a light, highly saturated green. Relative luminance 0.502; OKLCH L 77.6% C 0.211 H 138.7°. Best body text is #000000 at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#66D43D
RGB	rgb(102, 212, 61)
HSL	hsl(104, 64%, 54%)
HSV	hsv(104, 71%, 83%)
CMYK	cmyk(51.9%, 0%, 71.2%, 16.9%)
CIE-LAB	lab(76.22, -57.58, 61.70)
CIE-LCH	lch(76.22, 84.39, 133.02°)
OKLab	oklab(77.59% -0.1588 0.1397)
OKLCH	oklch(77.59% 0.211 138.7)
XYZ	xyz(29.8642, 50.2464, 12.5388)
Luminance	0.5025 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D43D #AB3DD4

analogous

#B1D43D #66D43D #3DD45F

triadic

#66D43D #3D66D4 #D43D66

tetradic

#66D43D #3DB1D4 #AB3DD4 #D45F3D

square

#66D43D #3DB1D4 #AB3DD4 #D45F3D

split-complementary

#66D43D #5F3DD4 #D43DB1

monochromatic

#357B1B #4BAD26 #66D43D #8EDF6F #B5EAA1

Accessibility & contrast

On white

1.90

#66D43D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.05

#66D43D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D43D

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D43D	#FFFFFF	#000000	##000000
##66D43D	1.00	1.90	11.05	11.05
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.05	21.00	1.00	1.00
##000000	11.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC223

Deuteranopia (green-blind)

#CCB84C

Tritanopia (blue-blind)

#5CCDB6

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #66d43d;
/* rgb */ color: rgb(102, 212, 61);
/* oklch */ color: oklch(77.6% 0.211 138.7);

Tailwind

colors: {
  custom: {
    50: '#9be27b',
    500: '#66d43d',
    950: '#000000',
  },
}

SCSS

$custom: #66d43d;
$custom-light: #9be27b;
$custom-dark: #000000;

JSON

{
  "hex": "#66d43d",
  "rgb": {
    "r": 102,
    "g": 212,
    "b": 61
  },
  "hsl": {
    "h": 103.709,
    "s": 63.713,
    "l": 53.529
  },
  "oklch": {
    "l": 0.77585,
    "c": 0.21147,
    "h": 138.7
  },
  "luminance": 0.50249
}

Semantic roles & 50–950 ramp

primary

#66D43D

secondary

#6D3283

accent

#41E7BA

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F150A

muted

#80847D

Preview Lab

Preview with #66D43D

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

Preview Lab → · Contrast checker → · Palette generator →