#66CD4A#66CD4A

#66CD4A is a light, vivid green. Relative luminance 0.470; OKLCH L 75.9% C 0.194 H 139.6°. Best body text is #000000 at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#66CD4A
RGB	rgb(102, 205, 74)
HSL	hsl(107, 57%, 55%)
HSV	hsv(107, 64%, 80%)
CMYK	cmyk(50.2%, 0%, 63.9%, 19.6%)
CIE-LAB	lab(74.18, -53.85, 54.43)
CIE-LCH	lch(74.18, 76.57, 134.69°)
OKLab	oklab(75.94% -0.1479 0.126)
OKLCH	oklch(75.94% 0.194 139.6)
XYZ	xyz(28.5457, 46.9797, 14.0410)
Luminance	0.4698 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD4A #B14ACD

analogous

#A7CD4A #66CD4A #4ACD70

triadic

#66CD4A #4A66CD #CD4A66

tetradic

#66CD4A #4AA7CD #B14ACD #CD704A

square

#66CD4A #4AA7CD #B14ACD #CD704A

split-complementary

#66CD4A #704ACD #CD4AA7

monochromatic

#357B22 #4AAB2F #66CD4A #8FDA7A #B7E7AA

Accessibility & contrast

On white

2.02

#66CD4A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.40

#66CD4A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD4A

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD4A	#FFFFFF	#000000	##000000
##66CD4A	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)

#D3BC3A

Deuteranopia (green-blind)

#C5B355

Tritanopia (blue-blind)

#5CC7B2

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd4a;
/* rgb */ color: rgb(102, 205, 74);
/* oklch */ color: oklch(75.9% 0.194 139.6);

Tailwind

colors: {
  custom: {
    50: '#9add82',
    500: '#66cd4a',
    950: '#000000',
  },
}

SCSS

$custom: #66cd4a;
$custom-light: #9add82;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd4a",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 74
  },
  "hsl": {
    "h": 107.176,
    "s": 56.71,
    "l": 54.706
  },
  "oklch": {
    "l": 0.75935,
    "c": 0.19425,
    "h": 139.6
  },
  "luminance": 0.46982
}

Semantic roles & 50–950 ramp

primary

#66CD4A

secondary

#C99ED5

accent

#48E0BF

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150B

muted

#7F837C

Preview Lab

Preview with #66CD4A

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

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