#66F290#66F290

#66F290 is a very light, vivid green. Relative luminance 0.683; OKLCH L 86.1% C 0.183 H 150.6°. Best body text is #000000 at 14.67:1 contrast (WCAG AA passes).

Color values

HEX	#66F290
RGB	rgb(102, 242, 144)
HSL	hsl(138, 84%, 67%)
HSV	hsv(138, 58%, 95%)
CMYK	cmyk(57.9%, 0%, 40.5%, 5.1%)
CIE-LAB	lab(86.18, -58.78, 36.17)
CIE-LCH	lch(86.18, 69.02, 148.40°)
OKLab	oklab(86.07% -0.159 0.0896)
OKLCH	oklch(86.07% 0.183 150.6)
XYZ	xyz(42.2625, 68.3387, 37.3437)
Luminance	0.6834 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F290 #F266C8

analogous

#82F266 #66F290 #66F2D6

triadic

#66F290 #9066F2 #F29066

tetradic

#66F290 #6682F2 #F266C8 #F2D666

square

#66F290 #6682F2 #F266C8 #F2D666

split-complementary

#66F290 #D666F2 #F26682

monochromatic

#11CC49 #2EED67 #66F290 #9EF7B9 #D7FCE2

Accessibility & contrast

On white

1.43

#66F290 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.67

#66F290 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F290

14.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F290	#FFFFFF	#000000	##000000
##66F290	1.00	1.43	14.67	14.67
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.67	21.00	1.00	1.00
##000000	14.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3DF89

Deuteranopia (green-blind)

#E1D296

Tritanopia (blue-blind)

#3EEEDA

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #66f290;
/* rgb */ color: rgb(102, 242, 144);
/* oklch */ color: oklch(86.1% 0.183 150.6);

Tailwind

colors: {
  custom: {
    50: '#9df7b1',
    500: '#66f290',
    950: '#000000',
  },
}

SCSS

$custom: #66f290;
$custom-light: #9df7b1;
$custom-dark: #000000;

JSON

{
  "hex": "#66f290",
  "rgb": {
    "r": 102,
    "g": 242,
    "b": 144
  },
  "hsl": {
    "h": 138,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.8607,
    "c": 0.18256,
    "h": 150.6
  },
  "luminance": 0.68343
}

Semantic roles & 50–950 ramp

primary

#66F290

secondary

#C9349C

accent

#059FE1

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66F290

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

Preview Lab → · Contrast checker → · Palette generator →