#66C644#66C644

#66C644 is a light, vivid green. Relative luminance 0.436; OKLCH L 74.1% C 0.190 H 138.6°. Best body text is #000000 at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#66C644
RGB	rgb(102, 198, 68)
HSL	hsl(104, 53%, 52%)
HSV	hsv(104, 66%, 78%)
CMYK	cmyk(48.5%, 0%, 65.7%, 22.4%)
CIE-LAB	lab(71.98, -51.69, 54.53)
CIE-LCH	lch(71.98, 75.14, 133.47°)
OKLab	oklab(74.11% -0.1424 0.1255)
OKLCH	oklch(74.11% 0.19 138.6)
XYZ	xyz(26.7160, 43.6284, 12.4811)
Luminance	0.4363 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C644 #A444C6

analogous

#A7C644 #66C644 #44C663

triadic

#66C644 #4466C6 #C64466

tetradic

#66C644 #44A7C6 #A444C6 #C66344

square

#66C644 #44A7C6 #A444C6 #C66344

split-complementary

#66C644 #6344C6 #C644A7

monochromatic

#366E22 #4C9D30 #66C644 #8CD473 #B3E3A2

Accessibility & contrast

On white

2.16

#66C644 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.73

#66C644 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C644

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C644	#FFFFFF	#000000	##000000
##66C644	1.00	2.16	9.73	9.73
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.73	21.00	1.00	1.00
##000000	9.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB633

Deuteranopia (green-blind)

#BFAD4F

Tritanopia (blue-blind)

#5EBFAB

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #66c644;
/* rgb */ color: rgb(102, 198, 68);
/* oklch */ color: oklch(74.1% 0.190 138.6);

Tailwind

colors: {
  custom: {
    50: '#99d87e',
    500: '#66c644',
    950: '#000000',
  },
}

SCSS

$custom: #66c644;
$custom-light: #99d87e;
$custom-dark: #000000;

JSON

{
  "hex": "#66c644",
  "rgb": {
    "r": 102,
    "g": 198,
    "b": 68
  },
  "hsl": {
    "h": 104.308,
    "s": 53.279,
    "l": 52.157
  },
  "oklch": {
    "l": 0.74113,
    "c": 0.18982,
    "h": 138.6
  },
  "luminance": 0.4363
}

Semantic roles & 50–950 ramp

primary

#66C644

secondary

#C097CF

accent

#4BDDB7

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F140A

muted

#7E837C

Preview Lab

Preview with #66C644

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

Preview Lab → · Contrast checker → · Palette generator →