#66DC57#66DC57

#66DC57 is a light, highly saturated green. Relative luminance 0.547; OKLCH L 79.8% C 0.203 H 141.5°. Best body text is #000000 at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#66DC57
RGB	rgb(102, 220, 87)
HSL	hsl(113, 66%, 60%)
HSV	hsv(113, 60%, 86%)
CMYK	cmyk(53.6%, 0%, 60.5%, 13.7%)
CIE-LAB	lab(78.87, -58.23, 54.11)
CIE-LCH	lch(78.87, 79.49, 137.10°)
OKLab	oklab(79.83% -0.159 0.1266)
OKLCH	oklch(79.83% 0.203 141.5)
XYZ	xyz(32.7914, 54.6966, 17.8445)
Luminance	0.5470 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DC57 #CD57DC

analogous

#A8DC57 #66DC57 #57DC8A

triadic

#66DC57 #5766DC #DC5766

tetradic

#66DC57 #57A8DC #CD57DC #DC8A57

square

#66DC57 #57A8DC #CD57DC #DC8A57

split-complementary

#66DC57 #8A57DC #DC57A8

monochromatic

#2D9920 #3DCB2A #66DC57 #94E78A #C2F1BC

Accessibility & contrast

On white

1.76

#66DC57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.94

#66DC57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DC57

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DC57	#FFFFFF	#000000	##000000
##66DC57	1.00	1.76	11.94	11.94
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.94	21.00	1.00	1.00
##000000	11.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1CA48

Deuteranopia (green-blind)

#D2BF62

Tritanopia (blue-blind)

#57D6C0

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66dc57;
/* rgb */ color: rgb(102, 220, 87);
/* oklch */ color: oklch(79.8% 0.203 141.5);

Tailwind

colors: {
  custom: {
    50: '#9ce88b',
    500: '#66dc57',
    950: '#000000',
  },
}

SCSS

$custom: #66dc57;
$custom-light: #9ce88b;
$custom-dark: #000000;

JSON

{
  "hex": "#66dc57",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 87
  },
  "hsl": {
    "h": 113.233,
    "s": 65.517,
    "l": 60.196
  },
  "oklch": {
    "l": 0.7983,
    "c": 0.20323,
    "h": 141.5
  },
  "luminance": 0.54699
}

Semantic roles & 50–950 ramp

primary

#66DC57

secondary

#923A9D

accent

#18CDB9

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DC57

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

Preview Lab → · Contrast checker → · Palette generator →