#66ED5B#66ED5B

#66ED5B is a very light, highly saturated green. Relative luminance 0.641; OKLCH L 84.1% C 0.221 H 142.1°. Best body text is #000000 at 13.83:1 contrast (WCAG AA passes).

Color values

HEX	#66ED5B
RGB	rgb(102, 237, 91)
HSL	hsl(115, 80%, 64%)
HSV	hsv(115, 62%, 93%)
CMYK	cmyk(57%, 0%, 61.6%, 7.1%)
CIE-LAB	lab(84.04, -64.00, 58.24)
CIE-LCH	lch(84.04, 86.54, 137.70°)
OKLab	oklab(84.11% -0.1744 0.1358)
OKLCH	oklch(84.11% 0.221 142.1)
XYZ	xyz(37.6501, 64.1451, 20.2927)
Luminance	0.6415 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ED5B #E25BED

analogous

#AFED5B #66ED5B #5BED99

triadic

#66ED5B #5B66ED #ED5B66

tetradic

#66ED5B #5BAFED #E25BED #ED995B

square

#66ED5B #5BAFED #E25BED #ED995B

split-complementary

#66ED5B #995BED #ED5BAF

monochromatic

#21B914 #33E724 #66ED5B #99F392 #CDF9C9

Accessibility & contrast

On white

1.52

#66ED5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.83

#66ED5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ED5B

13.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ED5B	#FFFFFF	#000000	##000000
##66ED5B	1.00	1.52	13.83	13.83
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.83	21.00	1.00	1.00
##000000	13.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2D94A

Deuteranopia (green-blind)

#E1CD67

Tritanopia (blue-blind)

#51E6CE

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66ed5b;
/* rgb */ color: rgb(102, 237, 91);
/* oklch */ color: oklch(84.1% 0.221 142.1);

Tailwind

colors: {
  custom: {
    50: '#9ef48e',
    500: '#66ed5b',
    950: '#000000',
  },
}

SCSS

$custom: #66ed5b;
$custom-light: #9ef48e;
$custom-dark: #000000;

JSON

{
  "hex": "#66ed5b",
  "rgb": {
    "r": 102,
    "g": 237,
    "b": 91
  },
  "hsl": {
    "h": 115.479,
    "s": 80.22,
    "l": 64.314
  },
  "oklch": {
    "l": 0.84106,
    "c": 0.22106,
    "h": 142.1
  },
  "luminance": 0.64148
}

Semantic roles & 50–950 ramp

primary

#66ED5B

secondary

#AE34B8

accent

#09DDCD

background

#FCFFFC

surface

#F6FEF4

border

#D0D6CE

text

#10170D

muted

#80857F

Preview Lab

Preview with #66ED5B

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

Preview Lab → · Contrast checker → · Palette generator →