#66EE5A#66EE5A

#66EE5A is a very light, highly saturated green. Relative luminance 0.647; OKLCH L 84.3% C 0.223 H 142.0°. Best body text is #000000 at 13.94:1 contrast (WCAG AA passes).

Color values

HEX	#66EE5A
RGB	rgb(102, 238, 90)
HSL	hsl(115, 81%, 64%)
HSV	hsv(115, 62%, 93%)
CMYK	cmyk(57.1%, 0%, 62.2%, 6.7%)
CIE-LAB	lab(84.33, -64.46, 58.99)
CIE-LCH	lch(84.33, 87.38, 137.54°)
OKLab	oklab(84.34% -0.1757 0.1373)
OKLCH	oklch(84.34% 0.223 142)
XYZ	xyz(37.8976, 64.7087, 20.1638)
Luminance	0.6471 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EE5A #E25AEE

analogous

#B0EE5A #66EE5A #5AEE98

triadic

#66EE5A #5A66EE #EE5A66

tetradic

#66EE5A #5AB0EE #E25AEE #EE985A

square

#66EE5A #5AB0EE #E25AEE #EE985A

split-complementary

#66EE5A #985AEE #EE5AB0

monochromatic

#21BA13 #33E823 #66EE5A #99F491 #CDF9C9

Accessibility & contrast

On white

1.51

#66EE5A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.94

#66EE5A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EE5A

13.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EE5A	#FFFFFF	#000000	##000000
##66EE5A	1.00	1.51	13.94	13.94
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.94	21.00	1.00	1.00
##000000	13.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3DA49

Deuteranopia (green-blind)

#E2CE66

Tritanopia (blue-blind)

#51E7CF

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66ee5a;
/* rgb */ color: rgb(102, 238, 90);
/* oklch */ color: oklch(84.3% 0.223 142.0);

Tailwind

colors: {
  custom: {
    50: '#9ef58e',
    500: '#66ee5a',
    950: '#000000',
  },
}

SCSS

$custom: #66ee5a;
$custom-light: #9ef58e;
$custom-dark: #000000;

JSON

{
  "hex": "#66ee5a",
  "rgb": {
    "r": 102,
    "g": 238,
    "b": 90
  },
  "hsl": {
    "h": 115.135,
    "s": 81.319,
    "l": 64.314
  },
  "oklch": {
    "l": 0.84344,
    "c": 0.22299,
    "h": 142
  },
  "luminance": 0.64712
}

Semantic roles & 50–950 ramp

primary

#66EE5A

secondary

#AE33B9

accent

#08DECC

background

#FCFFFC

surface

#F6FEF4

border

#D0D6CE

text

#10170D

muted

#80857F

Preview Lab

Preview with #66EE5A

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

Preview Lab → · Contrast checker → · Palette generator →