#66CB55#66CB55

#66CB55 is a light, vivid green. Relative luminance 0.462; OKLCH L 75.6% C 0.183 H 140.9°. Best body text is #000000 at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#66CB55
RGB	rgb(102, 203, 85)
HSL	hsl(111, 53%, 56%)
HSV	hsv(111, 58%, 80%)
CMYK	cmyk(49.8%, 0%, 58.1%, 20.4%)
CIE-LAB	lab(73.67, -51.94, 49.04)
CIE-LCH	lch(73.67, 71.44, 136.65°)
OKLab	oklab(75.55% -0.142 0.1155)
OKLCH	oklch(75.55% 0.183 140.9)
XYZ	xyz(28.4739, 46.1904, 16.0078)
Luminance	0.4619 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB55 #BA55CB

analogous

#A1CB55 #66CB55 #55CB7F

triadic

#66CB55 #5566CB #CB5566

tetradic

#66CB55 #55A1CB #BA55CB #CB7F55

square

#66CB55 #55A1CB #BA55CB #CB7F55

split-complementary

#66CB55 #7F55CB #CB55A1

monochromatic

#337F27 #46AE35 #66CB55 #90D984 #BAE8B3

Accessibility & contrast

On white

2.05

#66CB55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.24

#66CB55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB55

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB55	#FFFFFF	#000000	##000000
##66CB55	1.00	2.05	10.24	10.24
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.24	21.00	1.00	1.00
##000000	10.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0BA49

Deuteranopia (green-blind)

#C2B25E

Tritanopia (blue-blind)

#5BC5B1

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cb55;
/* rgb */ color: rgb(102, 203, 85);
/* oklch */ color: oklch(75.6% 0.183 140.9);

Tailwind

colors: {
  custom: {
    50: '#99db88',
    500: '#66cb55',
    950: '#000000',
  },
}

SCSS

$custom: #66cb55;
$custom-light: #99db88;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb55",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 85
  },
  "hsl": {
    "h": 111.356,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.75552,
    "c": 0.18309,
    "h": 140.9
  },
  "luminance": 0.46193
}

Semantic roles & 50–950 ramp

primary

#66CB55

secondary

#CFA6D6

accent

#4BDDC8

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CB55

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

Preview Lab → · Contrast checker → · Palette generator →