#397BDD
Blue
HEX
RGB
HSL
About #397BDD Blue
#397BDD is a blue color. In the RGB color model, it is composed of 57 red, 123 green, and 221 blue. In the HSL color space, it has a hue of 216°, saturation of 71%, and lightness of 55%.
This color has a medium lightness value, making it a balanced tone ideal for both text and UI elements. With high saturation, it appears vibrant and eye-catching.
CSS Code & Gradients
Use #397BDD in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
216°
Hue
71%
Saturation
55%
Lightness
Blue
Color Harmonies
Colors that work well with #397BDD based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #397BDD against white and black backgrounds.
Aa#397BDD on White
Contrast Ratio4.16:1
AA ✗AA Large ✓AAA ✗
Aa#397BDD on Black
Contrast Ratio5.05:1
AA ✓AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #397BDD across different color formats.
| Format | Value |
|---|---|
| HEX | #397BDD |
| RGB | rgb(57, 123, 221) |
| HSL | hsl(216, 71%, 55%) |
| RGB Decimal | 57, 123, 221 |
| RGB Percent | 22.4%, 48.2%, 86.7% |
| CMYK (approx.) | 74%, 44%, 0%, 13% |
Related Palettes
12 palettes using #397BDD or similar colors