#66D552#66D552

#66D552 is a light, vivid green. Relative luminance 0.510; OKLCH L 78.0% C 0.198 H 140.7°. Best body text is #000000 at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#66D552
RGB	rgb(102, 213, 82)
HSL	hsl(111, 61%, 58%)
HSV	hsv(111, 62%, 84%)
CMYK	cmyk(52.1%, 0%, 61.5%, 16.5%)
CIE-LAB	lab(76.69, -56.12, 53.82)
CIE-LCH	lch(76.69, 77.75, 136.20°)
OKLab	oklab(78.03% -0.1535 0.1255)
OKLCH	oklch(78.03% 0.198 140.7)
XYZ	xyz(30.7954, 51.0201, 16.2061)
Luminance	0.5102 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D552 #C152D5

analogous

#A7D552 #66D552 #52D580

triadic

#66D552 #5266D5 #D55266

tetradic

#66D552 #52A7D5 #C152D5 #D58052

square

#66D552 #52A7D5 #C152D5 #D58052

split-complementary

#66D552 #8052D5 #D552A7

monochromatic

#328B22 #43BC2E #66D552 #92E183 #BDEDB4

Accessibility & contrast

On white

1.87

#66D552 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.20

#66D552 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D552

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D552	#FFFFFF	#000000	##000000
##66D552	1.00	1.87	11.20	11.20
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.20	21.00	1.00	1.00
##000000	11.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC343

Deuteranopia (green-blind)

#CCBA5D

Tritanopia (blue-blind)

#59CFB9

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #66d552;
/* rgb */ color: rgb(102, 213, 82);
/* oklch */ color: oklch(78.0% 0.198 140.7);

Tailwind

colors: {
  custom: {
    50: '#9be387',
    500: '#66d552',
    950: '#000000',
  },
}

SCSS

$custom: #66d552;
$custom-light: #9be387;
$custom-dark: #000000;

JSON

{
  "hex": "#66d552",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 82
  },
  "hsl": {
    "h": 110.84,
    "s": 60.93,
    "l": 57.843
  },
  "oklch": {
    "l": 0.78026,
    "c": 0.1983,
    "h": 140.7
  },
  "luminance": 0.51022
}

Semantic roles & 50–950 ramp

primary

#66D552

secondary

#843A91

accent

#44E4CC

background

#FCFEFC

surface

#F5FCF3

border

#CFD5CD

text

#0F150C

muted

#80847F

Preview Lab

Preview with #66D552

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

Preview Lab → · Contrast checker → · Palette generator →