#66CD42#66CD42

#66CD42 is a light, vivid green. Relative luminance 0.469; OKLCH L 75.9% C 0.200 H 138.8°. Best body text is #000000 at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#66CD42
RGB	rgb(102, 205, 66)
HSL	hsl(104, 58%, 53%)
HSV	hsv(104, 68%, 80%)
CMYK	cmyk(50.2%, 0%, 67.8%, 19.6%)
CIE-LAB	lab(74.11, -54.56, 57.62)
CIE-LCH	lch(74.11, 79.36, 133.44°)
OKLab	oklab(75.86% -0.1503 0.1318)
OKLCH	oklch(75.86% 0.2 138.8)
XYZ	xyz(28.2931, 46.8787, 12.7108)
Luminance	0.4688 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD42 #A942CD

analogous

#ACCD42 #66CD42 #42CD63

triadic

#66CD42 #4266CD #CD4266

tetradic

#66CD42 #42ACCD #A942CD #CD6342

square

#66CD42 #42ACCD #A942CD #CD6342

split-complementary

#66CD42 #6342CD #CD42AC

monochromatic

#35761F #4BA62C #66CD42 #8DDA72 #B4E7A3

Accessibility & contrast

On white

2.02

#66CD42 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.38

#66CD42 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD42

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD42	#FFFFFF	#000000	##000000
##66CD42	1.00	2.02	10.38	10.38
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.38	21.00	1.00	1.00
##000000	10.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BC2E

Deuteranopia (green-blind)

#C6B34F

Tritanopia (blue-blind)

#5DC6B1

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd42;
/* rgb */ color: rgb(102, 205, 66);
/* oklch */ color: oklch(75.9% 0.200 138.8);

Tailwind

colors: {
  custom: {
    50: '#9add7d',
    500: '#66cd42',
    950: '#000000',
  },
}

SCSS

$custom: #66cd42;
$custom-light: #9add7d;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd42",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 66
  },
  "hsl": {
    "h": 104.46,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.75861,
    "c": 0.19988,
    "h": 138.8
  },
  "luminance": 0.46881
}

Semantic roles & 50–950 ramp

primary

#66CD42

secondary

#C497D3

accent

#46E1B9

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CD42

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

Preview Lab → · Contrast checker → · Palette generator →