#66C73F#66C73F

#66C73F is a light, vivid green. Relative luminance 0.440; OKLCH L 74.3% C 0.195 H 138.2°. Best body text is #000000 at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#66C73F
RGB	rgb(102, 199, 63)
HSL	hsl(103, 55%, 51%)
HSV	hsv(103, 68%, 78%)
CMYK	cmyk(48.7%, 0%, 68.3%, 22%)
CIE-LAB	lab(72.25, -52.51, 56.83)
CIE-LCH	lch(72.25, 77.38, 132.74°)
OKLab	oklab(74.32% -0.1449 0.1297)
OKLCH	oklch(74.32% 0.195 138.2)
XYZ	xyz(26.7992, 44.0286, 11.7879)
Luminance	0.4403 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C73F #A03FC7

analogous

#AAC73F #66C73F #3FC75C

triadic

#66C73F #3F66C7 #C73F66

tetradic

#66C73F #3FAAC7 #A03FC7 #C75C3F

square

#66C73F #3FAAC7 #A03FC7 #C75C3F

split-complementary

#66C73F #5C3FC7 #C73FAA

monochromatic

#356C20 #4D9B2D #66C73F #8CD56E #B2E39E

Accessibility & contrast

On white

2.14

#66C73F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.81

#66C73F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C73F

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C73F	#FFFFFF	#000000	##000000
##66C73F	1.00	2.14	9.81	9.81
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.81	21.00	1.00	1.00
##000000	9.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB62B

Deuteranopia (green-blind)

#C0AE4B

Tritanopia (blue-blind)

#5FC0AC

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66c73f;
/* rgb */ color: rgb(102, 199, 63);
/* oklch */ color: oklch(74.3% 0.195 138.2);

Tailwind

colors: {
  custom: {
    50: '#9ad97b',
    500: '#66c73f',
    950: '#000000',
  },
}

SCSS

$custom: #66c73f;
$custom-light: #9ad97b;
$custom-dark: #000000;

JSON

{
  "hex": "#66c73f",
  "rgb": {
    "r": 102,
    "g": 199,
    "b": 63
  },
  "hsl": {
    "h": 102.794,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.74321,
    "c": 0.19452,
    "h": 138.2
  },
  "luminance": 0.44031
}

Semantic roles & 50–950 ramp

primary

#66C73F

secondary

#BE93CF

accent

#4ADEB4

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F150A

muted

#7E837C

Preview Lab

Preview with #66C73F

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

Preview Lab → · Contrast checker → · Palette generator →