#66CF55#66CF55

#66CF55 is a light, vivid green. Relative luminance 0.481; OKLCH L 76.6% C 0.188 H 141.0°. Best body text is #000000 at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#66CF55
RGB	rgb(102, 207, 85)
HSL	hsl(112, 56%, 57%)
HSV	hsv(112, 59%, 81%)
CMYK	cmyk(50.7%, 0%, 58.9%, 18.8%)
CIE-LAB	lab(74.89, -53.50, 50.45)
CIE-LCH	lch(74.89, 73.54, 136.68°)
OKLab	oklab(76.55% -0.1463 0.1186)
OKLCH	oklch(76.55% 0.188 141)
XYZ	xyz(29.4307, 48.1041, 16.3267)
Luminance	0.4811 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF55 #BE55CF

analogous

#A3CF55 #66CF55 #55CF81

triadic

#66CF55 #5566CF #CF5566

tetradic

#66CF55 #55A3CF #BE55CF #CF8155

square

#66CF55 #55A3CF #BE55CF #CF8155

split-complementary

#66CF55 #8155CF #CF55A3

monochromatic

#338425 #45B433 #66CF55 #91DC85 #BCEAB4

Accessibility & contrast

On white

1.98

#66CF55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.62

#66CF55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF55

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF55	#FFFFFF	#000000	##000000
##66CF55	1.00	1.98	10.62	10.62
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.62	21.00	1.00	1.00
##000000	10.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BE48

Deuteranopia (green-blind)

#C6B55F

Tritanopia (blue-blind)

#5AC9B5

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf55;
/* rgb */ color: rgb(102, 207, 85);
/* oklch */ color: oklch(76.6% 0.188 141.0);

Tailwind

colors: {
  custom: {
    50: '#9ade89',
    500: '#66cf55',
    950: '#000000',
  },
}

SCSS

$custom: #66cf55;
$custom-light: #9ade89;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf55",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 85
  },
  "hsl": {
    "h": 111.639,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.76555,
    "c": 0.18829,
    "h": 141
  },
  "luminance": 0.48106
}

Semantic roles & 50–950 ramp

primary

#66CF55

secondary

#D2A7D9

accent

#49DFCA

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CF55

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

Preview Lab → · Contrast checker → · Palette generator →