#378BBF
Blue
HEX
RGB
HSL
About #378BBF Blue
#378BBF is a blue color. In the RGB color model, it is composed of 55 red, 139 green, and 191 blue. In the HSL color space, it has a hue of 203°, saturation of 55%, 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 & Gradients
Use #378BBF in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
203°
Hue
55%
Saturation
48%
Lightness
Blue
Color Harmonies
Colors that work well with #378BBF based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #378BBF against white and black backgrounds.
Aa#378BBF on White
Contrast Ratio3.74:1
AA ✗AA Large ✓AAA ✗
Aa#378BBF on Black
Contrast Ratio5.61:1
AA ✓AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #378BBF across different color formats.
| Format | Value |
|---|---|
| HEX | #378BBF |
| RGB | rgb(55, 139, 191) |
| HSL | hsl(203, 55%, 48%) |
| RGB Decimal | 55, 139, 191 |
| RGB Percent | 21.6%, 54.5%, 74.9% |
| CMYK (approx.) | 71%, 27%, 0%, 25% |
Related Palettes
12 palettes using #378BBF or similar colors