#3666BF
Blue
HEX
RGB
HSL
About #3666BF Blue
#3666BF is a blue color. In the RGB color model, it is composed of 54 red, 102 green, and 191 blue. In the HSL color space, it has a hue of 219°, saturation of 56%, and lightness of 48%.
This color has a medium lightness value, making it a balanced tone ideal for both text and UI elements. With moderate saturation, it appears balanced and versatile.
CSS Code
Use #3666BF in your CSS, SCSS, or Tailwind projects.
Color Properties
219°
Hue
56%
Saturation
48%
Lightness
Blue
Color Harmonies
Colors that work well with #3666BF based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #3666BF against white and black backgrounds.
Aa#3666BF on White
Contrast Ratio5.51:1
AA ✓AA Large ✓AAA ✗
Aa#3666BF on Black
Contrast Ratio3.81:1
AA ✗AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #3666BF across different color formats.
| Format | Value |
|---|---|
| HEX | #3666BF |
| RGB | rgb(54, 102, 191) |
| HSL | hsl(219, 56%, 48%) |
| RGB Decimal | 54, 102, 191 |
| RGB Percent | 21.2%, 40.0%, 74.9% |
| CMYK (approx.) | 72%, 47%, 0%, 25% |
Related Palettes
12 palettes using #3666BF or similar colors