#66DD51#66DD51

#66DD51 is a light, highly saturated green. Relative luminance 0.551; OKLCH L 80.0% C 0.209 H 140.8°. Best body text is #000000 at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#66DD51
RGB	rgb(102, 221, 81)
HSL	hsl(111, 67%, 59%)
HSV	hsv(111, 63%, 87%)
CMYK	cmyk(53.8%, 0%, 63.3%, 13.3%)
CIE-LAB	lab(79.12, -59.20, 56.95)
CIE-LCH	lch(79.12, 82.14, 136.11°)
OKLab	oklab(80.02% -0.1619 0.132)
OKLCH	oklch(80.02% 0.209 140.8)
XYZ	xyz(32.8197, 55.1291, 16.6945)
Luminance	0.5513 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DD51 #C851DD

analogous

#ACDD51 #66DD51 #51DD82

triadic

#66DD51 #5166DD #DD5166

tetradic

#66DD51 #51ACDD #C851DD #DD8251

square

#66DD51 #51ACDD #C851DD #DD8251

split-complementary

#66DD51 #8251DD #DD51AC

monochromatic

#2F961D #40C927 #66DD51 #93E784 #C0F1B7

Accessibility & contrast

On white

1.75

#66DD51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.03

#66DD51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DD51

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DD51	#FFFFFF	#000000	##000000
##66DD51	1.00	1.75	12.03	12.03
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.03	21.00	1.00	1.00
##000000	12.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3CA40

Deuteranopia (green-blind)

#D3C05D

Tritanopia (blue-blind)

#58D6C0

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #66dd51;
/* rgb */ color: rgb(102, 221, 81);
/* oklch */ color: oklch(80.0% 0.209 140.8);

Tailwind

colors: {
  custom: {
    50: '#9ce887',
    500: '#66dd51',
    950: '#000000',
  },
}

SCSS

$custom: #66dd51;
$custom-light: #9ce887;
$custom-dark: #000000;

JSON

{
  "hex": "#66dd51",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 81
  },
  "hsl": {
    "h": 111,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.80018,
    "c": 0.20896,
    "h": 140.8
  },
  "luminance": 0.55132
}

Semantic roles & 50–950 ramp

primary

#66DD51

secondary

#8C389B

accent

#3EEAD0

background

#FCFEFC

surface

#F6FDF4

border

#D0D5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DD51

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

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