#66CD3E#66CD3E

#66CD3E is a light, highly saturated green. Relative luminance 0.468; OKLCH L 75.8% C 0.203 H 138.4°. Best body text is #000000 at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#66CD3E
RGB	rgb(102, 205, 62)
HSL	hsl(103, 59%, 52%)
HSV	hsv(103, 70%, 80%)
CMYK	cmyk(50.2%, 0%, 69.8%, 19.6%)
CIE-LAB	lab(74.08, -54.89, 59.13)
CIE-LCH	lch(74.08, 80.68, 132.87°)
OKLab	oklab(75.83% -0.1514 0.1344)
OKLCH	oklch(75.83% 0.203 138.4)
XYZ	xyz(28.1793, 46.8332, 12.1113)
Luminance	0.4683 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD3E #A53ECD

analogous

#ADCD3E #66CD3E #3ECD5E

triadic

#66CD3E #3E66CD #CD3E66

tetradic

#66CD3E #3EADCD #A53ECD #CD5E3E

square

#66CD3E #3EADCD #A53ECD #CD5E3E

split-complementary

#66CD3E #5E3ECD #CD3EAD

monochromatic

#36731E #4CA32A #66CD3E #8DDA6F #B3E69F

Accessibility & contrast

On white

2.03

#66CD3E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.37

#66CD3E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD3E

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD3E	#FFFFFF	#000000	##000000
##66CD3E	1.00	2.03	10.37	10.37
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.37	21.00	1.00	1.00
##000000	10.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BC28

Deuteranopia (green-blind)

#C6B34C

Tritanopia (blue-blind)

#5EC6B1

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd3e;
/* rgb */ color: rgb(102, 205, 62);
/* oklch */ color: oklch(75.8% 0.203 138.4);

Tailwind

colors: {
  custom: {
    50: '#9bdd7b',
    500: '#66cd3e',
    950: '#000000',
  },
}

SCSS

$custom: #66cd3e;
$custom-light: #9bdd7b;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd3e",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 62
  },
  "hsl": {
    "h": 103.217,
    "s": 58.848,
    "l": 52.353
  },
  "oklch": {
    "l": 0.75828,
    "c": 0.2025,
    "h": 138.4
  },
  "luminance": 0.46835
}

Semantic roles & 50–950 ramp

primary

#66CD3E

secondary

#C194D3

accent

#46E2B6

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CD3E

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

Preview Lab → · Contrast checker → · Palette generator →