#66CF54#66CF54

#66CF54 is a light, vivid green. Relative luminance 0.481; OKLCH L 76.5% C 0.189 H 140.8°. Best body text is #000000 at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#66CF54
RGB	rgb(102, 207, 84)
HSL	hsl(111, 56%, 57%)
HSV	hsv(111, 59%, 81%)
CMYK	cmyk(50.7%, 0%, 59.4%, 18.8%)
CIE-LAB	lab(74.88, -53.61, 50.89)
CIE-LCH	lch(74.88, 73.92, 136.49°)
OKLab	oklab(76.54% -0.1466 0.1194)
OKLCH	oklch(76.54% 0.189 140.8)
XYZ	xyz(29.3913, 48.0883, 16.1190)
Luminance	0.4809 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF54 #BD54CF

analogous

#A3CF54 #66CF54 #54CF80

triadic

#66CF54 #5466CF #CF5466

tetradic

#66CF54 #54A3CF #BD54CF #CF8054

square

#66CF54 #54A3CF #BD54CF #CF8054

split-complementary

#66CF54 #8054CF #CF54A3

monochromatic

#338425 #45B332 #66CF54 #91DC84 #BCEAB4

Accessibility & contrast

On white

1.98

#66CF54 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.62

#66CF54 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF54

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF54	#FFFFFF	#000000	##000000
##66CF54	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)

#D4BE47

Deuteranopia (green-blind)

#C6B55E

Tritanopia (blue-blind)

#5AC9B4

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf54;
/* rgb */ color: rgb(102, 207, 84);
/* oklch */ color: oklch(76.5% 0.189 140.8);

Tailwind

colors: {
  custom: {
    50: '#9ade88',
    500: '#66cf54',
    950: '#000000',
  },
}

SCSS

$custom: #66cf54;
$custom-light: #9ade88;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf54",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 84
  },
  "hsl": {
    "h": 111.22,
    "s": 56.164,
    "l": 57.059
  },
  "oklch": {
    "l": 0.76544,
    "c": 0.18909,
    "h": 140.8
  },
  "luminance": 0.48091
}

Semantic roles & 50–950 ramp

primary

#66CF54

secondary

#D1A6D8

accent

#48DFC9

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CF54

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

Preview Lab → · Contrast checker → · Palette generator →