#66DF5B#66DF5B

#66DF5B is a light, highly saturated green. Relative luminance 0.564; OKLCH L 80.6% C 0.204 H 142.0°. Best body text is #000000 at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#66DF5B
RGB	rgb(102, 223, 91)
HSL	hsl(115, 67%, 62%)
HSV	hsv(115, 59%, 87%)
CMYK	cmyk(54.3%, 0%, 59.2%, 12.5%)
CIE-LAB	lab(79.81, -58.91, 53.45)
CIE-LCH	lch(79.81, 79.55, 137.79°)
OKLab	oklab(80.62% -0.1606 0.1255)
OKLCH	oklch(80.62% 0.204 142)
XYZ	xyz(33.7538, 56.3526, 18.9939)
Luminance	0.5635 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DF5B #D45BDF

analogous

#A8DF5B #66DF5B #5BDF92

triadic

#66DF5B #5B66DF #DF5B66

tetradic

#66DF5B #5BA8DF #D45BDF #DF925B

square

#66DF5B #5BA8DF #D45BDF #DF925B

split-complementary

#66DF5B #925BDF #DF5BA8

monochromatic

#2AA01F #37D429 #66DF5B #96E98E #C6F3C1

Accessibility & contrast

On white

1.71

#66DF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.27

#66DF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DF5B

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DF5B	#FFFFFF	#000000	##000000
##66DF5B	1.00	1.71	12.27	12.27
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.27	21.00	1.00	1.00
##000000	12.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4CC4D

Deuteranopia (green-blind)

#D4C265

Tritanopia (blue-blind)

#55D9C2

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #66df5b;
/* rgb */ color: rgb(102, 223, 91);
/* oklch */ color: oklch(80.6% 0.204 142.0);

Tailwind

colors: {
  custom: {
    50: '#9cea8e',
    500: '#66df5b',
    950: '#000000',
  },
}

SCSS

$custom: #66df5b;
$custom-light: #9cea8e;
$custom-dark: #000000;

JSON

{
  "hex": "#66df5b",
  "rgb": {
    "r": 102,
    "g": 223,
    "b": 91
  },
  "hsl": {
    "h": 115,
    "s": 67.347,
    "l": 61.569
  },
  "oklch": {
    "l": 0.80623,
    "c": 0.20387,
    "h": 142
  },
  "luminance": 0.56355
}

Semantic roles & 50–950 ramp

primary

#66DF5B

secondary

#9B3BA3

accent

#16CFC0

background

#FCFEFC

surface

#F6FDF4

border

#D0D5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DF5B

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

Preview Lab → · Contrast checker → · Palette generator →