#66CD4D#66CD4D

#66CD4D is a light, vivid green. Relative luminance 0.470; OKLCH L 76.0% C 0.192 H 139.9°. Best body text is #000000 at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#66CD4D
RGB	rgb(102, 205, 77)
HSL	hsl(108, 56%, 55%)
HSV	hsv(108, 62%, 80%)
CMYK	cmyk(50.2%, 0%, 62.4%, 19.6%)
CIE-LAB	lab(74.20, -53.56, 53.19)
CIE-LCH	lch(74.20, 75.48, 135.20°)
OKLab	oklab(75.97% -0.1469 0.1237)
OKLCH	oklch(75.97% 0.192 139.9)
XYZ	xyz(28.6492, 47.0211, 14.5861)
Luminance	0.4702 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD4D #B44DCD

analogous

#A6CD4D #66CD4D #4DCD74

triadic

#66CD4D #4D66CD #CD4D66

tetradic

#66CD4D #4DA6CD #B44DCD #CD744D

square

#66CD4D #4DA6CD #B44DCD #CD744D

split-complementary

#66CD4D #744DCD #CD4DA6

monochromatic

#357D23 #49AC30 #66CD4D #8FDA7D #B8E8AD

Accessibility & contrast

On white

2.02

#66CD4D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.40

#66CD4D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD4D

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD4D	#FFFFFF	#000000	##000000
##66CD4D	1.00	2.02	10.40	10.40
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.40	21.00	1.00	1.00
##000000	10.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BC3E

Deuteranopia (green-blind)

#C5B358

Tritanopia (blue-blind)

#5CC7B2

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd4d;
/* rgb */ color: rgb(102, 205, 77);
/* oklch */ color: oklch(76.0% 0.192 139.9);

Tailwind

colors: {
  custom: {
    50: '#9add84',
    500: '#66cd4d',
    950: '#000000',
  },
}

SCSS

$custom: #66cd4d;
$custom-light: #9add84;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd4d",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 77
  },
  "hsl": {
    "h": 108.281,
    "s": 56.14,
    "l": 55.294
  },
  "oklch": {
    "l": 0.75966,
    "c": 0.19201,
    "h": 139.9
  },
  "luminance": 0.47023
}

Semantic roles & 50–950 ramp

primary

#66CD4D

secondary

#CBA0D6

accent

#48DFC2

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150B

muted

#7F837C

Preview Lab

Preview with #66CD4D

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

Preview Lab → · Contrast checker → · Palette generator →