#66DF59#66DF59

#66DF59 is a light, highly saturated green. Relative luminance 0.563; OKLCH L 80.6% C 0.205 H 141.7°. Best body text is #000000 at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#66DF59
RGB	rgb(102, 223, 89)
HSL	hsl(114, 68%, 61%)
HSV	hsv(114, 60%, 87%)
CMYK	cmyk(54.3%, 0%, 60.1%, 12.5%)
CIE-LAB	lab(79.79, -59.13, 54.30)
CIE-LCH	lch(79.79, 80.28, 137.44°)
OKLab	oklab(80.6% -0.1613 0.1272)
OKLCH	oklch(80.6% 0.205 141.7)
XYZ	xyz(33.6687, 56.3186, 18.5456)
Luminance	0.5632 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DF59 #D259DF

analogous

#A9DF59 #66DF59 #59DF8F

triadic

#66DF59 #5966DF #DF5966

tetradic

#66DF59 #59A9DF #D259DF #DF8F59

square

#66DF59 #59A9DF #D259DF #DF8F59

split-complementary

#66DF59 #8F59DF #DF59A9

monochromatic

#2B9F1F #39D229 #66DF59 #95E98C #C5F3C0

Accessibility & contrast

On white

1.71

#66DF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.26

#66DF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DF59

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DF59	#FFFFFF	#000000	##000000
##66DF59	1.00	1.71	12.26	12.26
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.26	21.00	1.00	1.00
##000000	12.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4CC4A

Deuteranopia (green-blind)

#D4C264

Tritanopia (blue-blind)

#56D9C2

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #66df59;
/* rgb */ color: rgb(102, 223, 89);
/* oklch */ color: oklch(80.6% 0.205 141.7);

Tailwind

colors: {
  custom: {
    50: '#9cea8c',
    500: '#66df59',
    950: '#000000',
  },
}

SCSS

$custom: #66df59;
$custom-light: #9cea8c;
$custom-dark: #000000;

JSON

{
  "hex": "#66df59",
  "rgb": {
    "r": 102,
    "g": 223,
    "b": 89
  },
  "hsl": {
    "h": 114.179,
    "s": 67.677,
    "l": 61.176
  },
  "oklch": {
    "l": 0.80601,
    "c": 0.20542,
    "h": 141.7
  },
  "luminance": 0.56321
}

Semantic roles & 50–950 ramp

primary

#66DF59

secondary

#983AA2

accent

#16D0BE

background

#FCFEFC

surface

#F6FDF4

border

#D0D5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DF59

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

Preview Lab → · Contrast checker → · Palette generator →