#66CF58#66CF58

#66CF58 is a light, vivid green. Relative luminance 0.482; OKLCH L 76.6% C 0.186 H 141.4°. Best body text is #000000 at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#66CF58
RGB	rgb(102, 207, 88)
HSL	hsl(113, 55%, 58%)
HSV	hsv(113, 57%, 81%)
CMYK	cmyk(50.7%, 0%, 57.5%, 18.8%)
CIE-LAB	lab(74.92, -53.17, 49.13)
CIE-LCH	lch(74.92, 72.40, 137.26°)
OKLab	oklab(76.59% -0.1452 0.116)
OKLCH	oklch(76.59% 0.186 141.4)
XYZ	xyz(29.5524, 48.1528, 16.9678)
Luminance	0.4815 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF58 #C158CF

analogous

#A2CF58 #66CF58 #58CF85

triadic

#66CF58 #5866CF #CF5866

tetradic

#66CF58 #58A2CF #C158CF #CF8558

square

#66CF58 #58A2CF #C158CF #CF8558

split-complementary

#66CF58 #8558CF #CF58A2

monochromatic

#328627 #43B634 #66CF58 #92DD88 #BDEAB7

Accessibility & contrast

On white

1.98

#66CF58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.63

#66CF58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF58

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF58	#FFFFFF	#000000	##000000
##66CF58	1.00	1.98	10.63	10.63
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.63	21.00	1.00	1.00
##000000	10.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BE4C

Deuteranopia (green-blind)

#C6B561

Tritanopia (blue-blind)

#5AC9B5

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf58;
/* rgb */ color: rgb(102, 207, 88);
/* oklch */ color: oklch(76.6% 0.186 141.4);

Tailwind

colors: {
  custom: {
    50: '#9ade8b',
    500: '#66cf58',
    950: '#000000',
  },
}

SCSS

$custom: #66cf58;
$custom-light: #9ade8b;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf58",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 88
  },
  "hsl": {
    "h": 112.941,
    "s": 55.349,
    "l": 57.843
  },
  "oklch": {
    "l": 0.7659,
    "c": 0.18583,
    "h": 141.4
  },
  "luminance": 0.48155
}

Semantic roles & 50–950 ramp

primary

#66CF58

secondary

#D4AAD9

accent

#49DFCD

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CF58

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

Preview Lab → · Contrast checker → · Palette generator →