#66C658#66C658

#66C658 is a light, vivid green. Relative luminance 0.439; OKLCH L 74.3% C 0.174 H 141.2°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#66C658
RGB	rgb(102, 198, 88)
HSL	hsl(112, 49%, 56%)
HSV	hsv(112, 56%, 78%)
CMYK	cmyk(48.5%, 0%, 55.6%, 22.4%)
CIE-LAB	lab(72.17, -49.62, 45.91)
CIE-LCH	lch(72.17, 67.60, 137.22°)
OKLab	oklab(74.33% -0.1355 0.109)
OKLCH	oklch(74.33% 0.174 141.2)
XYZ	xyz(27.4338, 43.9156, 16.2616)
Luminance	0.4392 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C658 #B858C6

analogous

#9DC658 #66C658 #58C681

triadic

#66C658 #5866C6 #C65866

tetradic

#66C658 #589DC6 #B858C6 #C68158

square

#66C658 #589DC6 #B858C6 #C68158

split-complementary

#66C658 #8158C6 #C6589D

monochromatic

#347A2A #47A839 #66C658 #90D686 #BAE5B3

Accessibility & contrast

On white

2.15

#66C658 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#66C658 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C658

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C658	#FFFFFF	#000000	##000000
##66C658	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBB64D

Deuteranopia (green-blind)

#BEAE60

Tritanopia (blue-blind)

#5CC0AE

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66c658;
/* rgb */ color: rgb(102, 198, 88);
/* oklch */ color: oklch(74.3% 0.174 141.2);

Tailwind

colors: {
  custom: {
    50: '#98d88a',
    500: '#66c658',
    950: '#000000',
  },
}

SCSS

$custom: #66c658;
$custom-light: #98d88a;
$custom-dark: #000000;

JSON

{
  "hex": "#66c658",
  "rgb": {
    "r": 102,
    "g": 198,
    "b": 88
  },
  "hsl": {
    "h": 112.364,
    "s": 49.107,
    "l": 56.078
  },
  "oklch": {
    "l": 0.74334,
    "c": 0.17392,
    "h": 141.2
  },
  "luminance": 0.43918
}

Semantic roles & 50–950 ramp

primary

#66C658

secondary

#CEA6D4

accent

#4FD9C7

background

#F9FDF8

surface

#F2FAF0

border

#CCD3CB

text

#0E140C

muted

#7E837D

Preview Lab

Preview with #66C658

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

Preview Lab → · Contrast checker → · Palette generator →