#66CD3D#66CD3D

#66CD3D is a light, highly saturated green. Relative luminance 0.468; OKLCH L 75.8% C 0.203 H 138.3°. Best body text is #000000 at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#66CD3D
RGB	rgb(102, 205, 61)
HSL	hsl(103, 59%, 52%)
HSV	hsv(103, 70%, 80%)
CMYK	cmyk(50.2%, 0%, 70.2%, 19.6%)
CIE-LAB	lab(74.08, -54.96, 59.50)
CIE-LCH	lch(74.08, 81.00, 132.73°)
OKLab	oklab(75.82% -0.1517 0.1351)
OKLCH	oklch(75.82% 0.203 138.3)
XYZ	xyz(28.1521, 46.8223, 11.9681)
Luminance	0.4682 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD3D #A43DCD

analogous

#AECD3D #66CD3D #3DCD5C

triadic

#66CD3D #3D66CD #CD3D66

tetradic

#66CD3D #3DAECD #A43DCD #CD5C3D

square

#66CD3D #3DAECD #A43DCD #CD5C3D

split-complementary

#66CD3D #5C3DCD #CD3DAE

monochromatic

#36721D #4CA32A #66CD3D #8CDA6E #B3E69E

Accessibility & contrast

On white

2.03

#66CD3D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.36

#66CD3D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD3D

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD3D	#FFFFFF	#000000	##000000
##66CD3D	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)

#D3BB26

Deuteranopia (green-blind)

#C6B34B

Tritanopia (blue-blind)

#5EC6B0

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd3d;
/* rgb */ color: rgb(102, 205, 61);
/* oklch */ color: oklch(75.8% 0.203 138.3);

Tailwind

colors: {
  custom: {
    50: '#9bdd7b',
    500: '#66cd3d',
    950: '#000000',
  },
}

SCSS

$custom: #66cd3d;
$custom-light: #9bdd7b;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd3d",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 61
  },
  "hsl": {
    "h": 102.917,
    "s": 59.016,
    "l": 52.157
  },
  "oklch": {
    "l": 0.7582,
    "c": 0.20312,
    "h": 138.3
  },
  "luminance": 0.46824
}

Semantic roles & 50–950 ramp

primary

#66CD3D

secondary

#C093D2

accent

#46E2B6

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CD3D

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

Preview Lab → · Contrast checker → · Palette generator →