#66DF57#66DF57

#66DF57 is a light, highly saturated green. Relative luminance 0.563; OKLCH L 80.6% C 0.207 H 141.5°. Best body text is #000000 at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#66DF57
RGB	rgb(102, 223, 87)
HSL	hsl(113, 68%, 61%)
HSV	hsv(113, 61%, 87%)
CMYK	cmyk(54.3%, 0%, 61%, 12.5%)
CIE-LAB	lab(79.78, -59.34, 55.14)
CIE-LCH	lch(79.78, 81.01, 137.10°)
OKLab	oklab(80.58% -0.162 0.1288)
OKLCH	oklch(80.58% 0.207 141.5)
XYZ	xyz(33.5859, 56.2855, 18.1093)
Luminance	0.5629 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DF57 #D057DF

analogous

#AADF57 #66DF57 #57DF8C

triadic

#66DF57 #5766DF #DF5766

tetradic

#66DF57 #57AADF #D057DF #DF8C57

square

#66DF57 #57AADF #D057DF #DF8C57

split-complementary

#66DF57 #8C57DF #DF57AA

monochromatic

#2C9E1E #3AD128 #66DF57 #95E98A #C4F3BE

Accessibility & contrast

On white

1.71

#66DF57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.26

#66DF57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DF57

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DF57	#FFFFFF	#000000	##000000
##66DF57	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)

#E4CC48

Deuteranopia (green-blind)

#D5C262

Tritanopia (blue-blind)

#56D9C2

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #66df57;
/* rgb */ color: rgb(102, 223, 87);
/* oklch */ color: oklch(80.6% 0.207 141.5);

Tailwind

colors: {
  custom: {
    50: '#9cea8b',
    500: '#66df57',
    950: '#000000',
  },
}

SCSS

$custom: #66df57;
$custom-light: #9cea8b;
$custom-dark: #000000;

JSON

{
  "hex": "#66df57",
  "rgb": {
    "r": 102,
    "g": 223,
    "b": 87
  },
  "hsl": {
    "h": 113.382,
    "s": 68,
    "l": 60.784
  },
  "oklch": {
    "l": 0.80579,
    "c": 0.20696,
    "h": 141.5
  },
  "luminance": 0.56288
}

Semantic roles & 50–950 ramp

primary

#66DF57

secondary

#9639A1

accent

#16D0BB

background

#FCFEFC

surface

#F6FDF4

border

#D0D5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DF57

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

Preview Lab → · Contrast checker → · Palette generator →