#66CD4C#66CD4C

#66CD4C is a light, vivid green. Relative luminance 0.470; OKLCH L 76.0% C 0.193 H 139.8°. Best body text is #000000 at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#66CD4C
RGB	rgb(102, 205, 76)
HSL	hsl(108, 56%, 55%)
HSV	hsv(108, 63%, 80%)
CMYK	cmyk(50.2%, 0%, 62.9%, 19.6%)
CIE-LAB	lab(74.19, -53.66, 53.61)
CIE-LCH	lch(74.19, 75.85, 135.03°)
OKLab	oklab(75.96% -0.1472 0.1244)
OKLCH	oklch(75.96% 0.193 139.8)
XYZ	xyz(28.6142, 47.0071, 14.4015)
Luminance	0.4701 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD4C #B34CCD

analogous

#A6CD4C #66CD4C #4CCD72

triadic

#66CD4C #4C66CD #CD4C66

tetradic

#66CD4C #4CA6CD #B34CCD #CD724C

square

#66CD4C #4CA6CD #B34CCD #CD724C

split-complementary

#66CD4C #724CCD #CD4CA6

monochromatic

#357C23 #49AC30 #66CD4C #8FDA7C #B8E8AC

Accessibility & contrast

On white

2.02

#66CD4C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.40

#66CD4C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD4C

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD4C	#FFFFFF	#000000	##000000
##66CD4C	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)

#D3BC3D

Deuteranopia (green-blind)

#C5B357

Tritanopia (blue-blind)

#5CC7B2

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd4c;
/* rgb */ color: rgb(102, 205, 76);
/* oklch */ color: oklch(76.0% 0.193 139.8);

Tailwind

colors: {
  custom: {
    50: '#9add83',
    500: '#66cd4c',
    950: '#000000',
  },
}

SCSS

$custom: #66cd4c;
$custom-light: #9add83;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd4c",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 76
  },
  "hsl": {
    "h": 107.907,
    "s": 56.332,
    "l": 55.098
  },
  "oklch": {
    "l": 0.75955,
    "c": 0.19276,
    "h": 139.8
  },
  "luminance": 0.47009
}

Semantic roles & 50–950 ramp

primary

#66CD4C

secondary

#CB9FD5

accent

#48E0C1

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150B

muted

#7F837C

Preview Lab

Preview with #66CD4C

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

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