#66F59B#66F59B

#66F59B is a very light, vivid green. Relative luminance 0.705; OKLCH L 87.0% C 0.177 H 153.0°. Best body text is #000000 at 15.10:1 contrast (WCAG AA passes).

Color values

HEX	#66F59B
RGB	rgb(102, 245, 155)
HSL	hsl(142, 88%, 68%)
HSV	hsv(142, 58%, 96%)
CMYK	cmyk(58.4%, 0%, 36.7%, 3.9%)
CIE-LAB	lab(87.24, -58.07, 32.07)
CIE-LCH	lch(87.24, 66.34, 151.09°)
OKLab	oklab(87% -0.1574 0.0802)
OKLCH	oklch(87% 0.177 153)
XYZ	xyz(44.0448, 70.4919, 42.2892)
Luminance	0.7050 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F59B #F566C0

analogous

#78F566 #66F59B #66F5E3

triadic

#66F59B #9B66F5 #F59B66

tetradic

#66F59B #6678F5 #F566C0 #F5E366

square

#66F59B #6678F5 #F566C0 #F5E366

split-complementary

#66F59B #E366F5 #F56678

monochromatic

#0ED357 #2DF175 #66F59B #9FF9C1 #D9FDE6

Accessibility & contrast

On white

1.39

#66F59B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.10

#66F59B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F59B

15.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F59B	#FFFFFF	#000000	##000000
##66F59B	1.00	1.39	15.10	15.10
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.10	21.00	1.00	1.00
##000000	15.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5E395

Deuteranopia (green-blind)

#E2D5A1

Tritanopia (blue-blind)

#37F2DE

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66f59b;
/* rgb */ color: rgb(102, 245, 155);
/* oklch */ color: oklch(87.0% 0.177 153.0);

Tailwind

colors: {
  custom: {
    50: '#9df9b9',
    500: '#66f59b',
    950: '#000000',
  },
}

SCSS

$custom: #66f59b;
$custom-light: #9df9b9;
$custom-dark: #000000;

JSON

{
  "hex": "#66f59b",
  "rgb": {
    "r": 102,
    "g": 245,
    "b": 155
  },
  "hsl": {
    "h": 142.238,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.86998,
    "c": 0.17661,
    "h": 153
  },
  "luminance": 0.70496
}

Semantic roles & 50–950 ramp

primary

#66F59B

secondary

#CE3194

accent

#0190E4

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66F59B

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

Preview Lab → · Contrast checker → · Palette generator →