#66D33A#66D33A

#66D33A is a light, highly saturated green. Relative luminance 0.497; OKLCH L 77.3% C 0.212 H 138.4°. Best body text is #000000 at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#66D33A
RGB	rgb(102, 211, 58)
HSL	hsl(103, 63%, 53%)
HSV	hsv(103, 73%, 83%)
CMYK	cmyk(51.7%, 0%, 72.5%, 17.3%)
CIE-LAB	lab(75.89, -57.43, 62.44)
CIE-LCH	lch(75.89, 84.83, 132.61°)
OKLab	oklab(77.31% -0.1585 0.1408)
OKLCH	oklch(77.31% 0.212 138.4)
XYZ	xyz(29.5364, 49.7165, 12.0420)
Luminance	0.4972 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D33A #A73AD3

analogous

#B2D33A #66D33A #3AD35A

triadic

#66D33A #3A66D3 #D33A66

tetradic

#66D33A #3AB2D3 #A73AD3 #D35A3A

square

#66D33A #3AB2D3 #A73AD3 #D35A3A

split-complementary

#66D33A #5A3AD3 #D33AB2

monochromatic

#36781B #4CAA26 #66D33A #8DDE6C #B4E99E

Accessibility & contrast

On white

1.92

#66D33A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.94

#66D33A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D33A

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D33A	#FFFFFF	#000000	##000000
##66D33A	1.00	1.92	10.94	10.94
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.94	21.00	1.00	1.00
##000000	10.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C11E

Deuteranopia (green-blind)

#CBB849

Tritanopia (blue-blind)

#5DCCB5

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #66d33a;
/* rgb */ color: rgb(102, 211, 58);
/* oklch */ color: oklch(77.3% 0.212 138.4);

Tailwind

colors: {
  custom: {
    50: '#9be17a',
    500: '#66d33a',
    950: '#000000',
  },
}

SCSS

$custom: #66d33a;
$custom-light: #9be17a;
$custom-dark: #000000;

JSON

{
  "hex": "#66d33a",
  "rgb": {
    "r": 102,
    "g": 211,
    "b": 58
  },
  "hsl": {
    "h": 102.745,
    "s": 63.485,
    "l": 52.745
  },
  "oklch": {
    "l": 0.77311,
    "c": 0.21206,
    "h": 138.4
  },
  "luminance": 0.49719
}

Semantic roles & 50–950 ramp

primary

#66D33A

secondary

#C293D6

accent

#41E7B7

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66D33A

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

Preview Lab → · Contrast checker → · Palette generator →