#66DC51#66DC51

#66DC51 is a light, highly saturated green. Relative luminance 0.546; OKLCH L 79.8% C 0.208 H 140.8°. Best body text is #000000 at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#66DC51
RGB	rgb(102, 220, 81)
HSL	hsl(111, 67%, 59%)
HSV	hsv(111, 63%, 86%)
CMYK	cmyk(53.6%, 0%, 63.2%, 13.7%)
CIE-LAB	lab(78.81, -58.83, 56.61)
CIE-LCH	lch(78.81, 81.65, 136.10°)
OKLab	oklab(79.77% -0.1609 0.1313)
OKLCH	oklch(79.77% 0.208 140.8)
XYZ	xyz(32.5564, 54.6026, 16.6067)
Luminance	0.5461 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DC51 #C751DC

analogous

#ACDC51 #66DC51 #51DC82

triadic

#66DC51 #5166DC #DC5166

tetradic

#66DC51 #51ACDC #C751DC #DC8251

square

#66DC51 #51ACDC #C751DC #DC8251

split-complementary

#66DC51 #8251DC #DC51AC

monochromatic

#30951E #40C828 #66DC51 #93E684 #C0F0B7

Accessibility & contrast

On white

1.76

#66DC51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.92

#66DC51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DC51

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DC51	#FFFFFF	#000000	##000000
##66DC51	1.00	1.76	11.92	11.92
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.92	21.00	1.00	1.00
##000000	11.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C940

Deuteranopia (green-blind)

#D2BF5D

Tritanopia (blue-blind)

#58D5BF

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66dc51;
/* rgb */ color: rgb(102, 220, 81);
/* oklch */ color: oklch(79.8% 0.208 140.8);

Tailwind

colors: {
  custom: {
    50: '#9ce887',
    500: '#66dc51',
    950: '#000000',
  },
}

SCSS

$custom: #66dc51;
$custom-light: #9ce887;
$custom-dark: #000000;

JSON

{
  "hex": "#66dc51",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 81
  },
  "hsl": {
    "h": 110.935,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.79768,
    "c": 0.20773,
    "h": 140.8
  },
  "luminance": 0.54605
}

Semantic roles & 50–950 ramp

primary

#66DC51

secondary

#8B3899

accent

#3EE9D0

background

#FCFEFC

surface

#F6FDF4

border

#D0D5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DC51

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

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