#66F251#66F251

#66F251 is a very light, highly saturated green. Relative luminance 0.669; OKLCH L 85.3% C 0.234 H 141.2°. Best body text is #000000 at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#66F251
RGB	rgb(102, 242, 81)
HSL	hsl(112, 86%, 63%)
HSV	hsv(112, 67%, 95%)
CMYK	cmyk(57.9%, 0%, 66.5%, 5.1%)
CIE-LAB	lab(85.46, -66.70, 63.85)
CIE-LCH	lch(85.46, 92.33, 136.25°)
OKLab	oklab(85.25% -0.1823 0.1466)
OKLCH	oklch(85.25% 0.234 141.2)
XYZ	xyz(38.7149, 66.9196, 18.6596)
Luminance	0.6692 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F251 #DD51F2

analogous

#B6F251 #66F251 #51F28C

triadic

#66F251 #5166F2 #F25166

tetradic

#66F251 #51B6F2 #DD51F2 #F28C51

square

#66F251 #51B6F2 #DD51F2 #F28C51

split-complementary

#66F251 #8C51F2 #F251B6

monochromatic

#24BB0E #34EE18 #66F251 #98F68A #CAFBC3

Accessibility & contrast

On white

1.46

#66F251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.38

#66F251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F251

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F251	#FFFFFF	#000000	##000000
##66F251	1.00	1.46	14.38	14.38
#FFFFFF	1.46	1.00	21.00	21.00
#000000	14.38	21.00	1.00	1.00
##000000	14.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F8DD3B

Deuteranopia (green-blind)

#E6D160

Tritanopia (blue-blind)

#52EBD1

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #66f251;
/* rgb */ color: rgb(102, 242, 81);
/* oklch */ color: oklch(85.3% 0.234 141.2);

Tailwind

colors: {
  custom: {
    50: '#9ff789',
    500: '#66f251',
    950: '#000000',
  },
}

SCSS

$custom: #66f251;
$custom-light: #9ff789;
$custom-dark: #000000;

JSON

{
  "hex": "#66f251",
  "rgb": {
    "r": 102,
    "g": 242,
    "b": 81
  },
  "hsl": {
    "h": 112.174,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.85252,
    "c": 0.23393,
    "h": 141.2
  },
  "luminance": 0.66923
}

Semantic roles & 50–950 ramp

primary

#66F251

secondary

#A72EB9

accent

#03E3C5

background

#FDFFFC

surface

#F7FFF4

border

#D0D7CE

text

#10170C

muted

#81857F

Preview Lab

Preview with #66F251

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

Preview Lab → · Contrast checker → · Palette generator →