#646B78
Gray
HEX
RGB
HSL
About #646B78 Gray
#646B78 is a gray color. In the RGB color model, it is composed of 100 red, 107 green, and 120 blue. In the HSL color space, it has a hue of 219°, saturation of 9%, and lightness of 43%.
This color has a medium lightness value, making it a balanced tone ideal for both text and UI elements. With low saturation, it appears muted and subtle.
CSS Code
Use #646B78 in your CSS, SCSS, or Tailwind projects.
Color Properties
219°
Hue
9%
Saturation
43%
Lightness
Gray
Color Harmonies
Colors that work well with #646B78 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #646B78 against white and black backgrounds.
Aa#646B78 on White
Contrast Ratio5.36:1
AA ✓AA Large ✓AAA ✗
Aa#646B78 on Black
Contrast Ratio3.92:1
AA ✗AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #646B78 across different color formats.
| Format | Value |
|---|---|
| HEX | #646B78 |
| RGB | rgb(100, 107, 120) |
| HSL | hsl(219, 9%, 43%) |
| RGB Decimal | 100, 107, 120 |
| RGB Percent | 39.2%, 42.0%, 47.1% |
| CMYK (approx.) | 17%, 11%, 0%, 53% |
Related Palettes
12 palettes using #646B78 or similar colors