#66CD3A#66CD3A

#66CD3A is a light, highly saturated green. Relative luminance 0.468; OKLCH L 75.8% C 0.205 H 138.1°. Best body text is #000000 at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#66CD3A
RGB	rgb(102, 205, 58)
HSL	hsl(102, 60%, 52%)
HSV	hsv(102, 72%, 80%)
CMYK	cmyk(50.2%, 0%, 71.7%, 19.6%)
CIE-LAB	lab(74.06, -55.19, 60.58)
CIE-LCH	lch(74.06, 81.95, 132.33°)
OKLab	oklab(75.8% -0.1525 0.1369)
OKLCH	oklch(75.8% 0.205 138.1)
XYZ	xyz(28.0736, 46.7909, 11.5544)
Luminance	0.4679 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD3A #A13ACD

analogous

#B0CD3A #66CD3A #3ACD58

triadic

#66CD3A #3A66CD #CD3A66

tetradic

#66CD3A #3AB0CD #A13ACD #CD583A

square

#66CD3A #3AB0CD #A13ACD #CD583A

split-complementary

#66CD3A #583ACD #CD3AB0

monochromatic

#36701C #4DA129 #66CD3A #8CD96B #B2E69C

Accessibility & contrast

On white

2.03

#66CD3A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.36

#66CD3A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD3A

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD3A	#FFFFFF	#000000	##000000
##66CD3A	1.00	2.03	10.36	10.36
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.36	21.00	1.00	1.00
##000000	10.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BB20

Deuteranopia (green-blind)

#C6B348

Tritanopia (blue-blind)

#5EC6B0

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd3a;
/* rgb */ color: rgb(102, 205, 58);
/* oklch */ color: oklch(75.8% 0.205 138.1);

Tailwind

colors: {
  custom: {
    50: '#9bdd79',
    500: '#66cd3a',
    950: '#000000',
  },
}

SCSS

$custom: #66cd3a;
$custom-light: #9bdd79;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd3a",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 58
  },
  "hsl": {
    "h": 102.041,
    "s": 59.514,
    "l": 51.569
  },
  "oklch": {
    "l": 0.75797,
    "c": 0.20496,
    "h": 138.1
  },
  "luminance": 0.46793
}

Semantic roles & 50–950 ramp

primary

#66CD3A

secondary

#BE91D2

accent

#45E3B4

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CD3A

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

Preview Lab → · Contrast checker → · Palette generator →