#66D53A#66D53A

#66D53A is a light, highly saturated green. Relative luminance 0.507; OKLCH L 77.8% C 0.214 H 138.5°. Best body text is #000000 at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#66D53A
RGB	rgb(102, 213, 58)
HSL	hsl(103, 65%, 53%)
HSV	hsv(103, 73%, 84%)
CMYK	cmyk(52.1%, 0%, 72.8%, 16.5%)
CIE-LAB	lab(76.51, -58.17, 63.05)
CIE-LCH	lch(76.51, 85.78, 132.69°)
OKLab	oklab(77.82% -0.1605 0.1421)
OKLCH	oklch(77.82% 0.214 138.5)
XYZ	xyz(30.0364, 50.7165, 12.2086)
Luminance	0.5072 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D53A #A93AD5

analogous

#B3D53A #66D53A #3AD55B

triadic

#66D53A #3A66D5 #D53A66

tetradic

#66D53A #3AB3D5 #A93AD5 #D55B3A

square

#66D53A #3AB3D5 #A93AD5 #D55B3A

split-complementary

#66D53A #5B3AD5 #D53AB3

monochromatic

#357A1A #4BAD25 #66D53A #8DE06C #B4EB9F

Accessibility & contrast

On white

1.88

#66D53A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.14

#66D53A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D53A

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D53A	#FFFFFF	#000000	##000000
##66D53A	1.00	1.88	11.14	11.14
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.14	21.00	1.00	1.00
##000000	11.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBC21D

Deuteranopia (green-blind)

#CDB94A

Tritanopia (blue-blind)

#5CCEB7

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #66d53a;
/* rgb */ color: rgb(102, 213, 58);
/* oklch */ color: oklch(77.8% 0.214 138.5);

Tailwind

colors: {
  custom: {
    50: '#9ce37a',
    500: '#66d53a',
    950: '#000000',
  },
}

SCSS

$custom: #66d53a;
$custom-light: #9ce37a;
$custom-dark: #000000;

JSON

{
  "hex": "#66d53a",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 58
  },
  "hsl": {
    "h": 102.968,
    "s": 64.854,
    "l": 53.137
  },
  "oklch": {
    "l": 0.77815,
    "c": 0.21439,
    "h": 138.5
  },
  "luminance": 0.50719
}

Semantic roles & 50–950 ramp

primary

#66D53A

secondary

#6B3182

accent

#40E8B8

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F150A

muted

#80847D

Preview Lab

Preview with #66D53A

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

Preview Lab → · Contrast checker → · Palette generator →