#337DD1
Blue
HEX
RGB
HSL
About #337DD1 Blue
#337DD1 is a blue color. In the RGB color model, it is composed of 51 red, 125 green, and 209 blue. In the HSL color space, it has a hue of 212°, saturation of 63%, and lightness of 51%.
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 #337DD1 in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
212°
Hue
63%
Saturation
51%
Lightness
Blue
Color Harmonies
Colors that work well with #337DD1 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #337DD1 against white and black backgrounds.
Aa#337DD1 on White
Contrast Ratio4.2:1
AA ✗AA Large ✓AAA ✗
Aa#337DD1 on Black
Contrast Ratio4.99:1
AA ✓AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #337DD1 across different color formats.
| Format | Value |
|---|---|
| HEX | #337DD1 |
| RGB | rgb(51, 125, 209) |
| HSL | hsl(212, 63%, 51%) |
| RGB Decimal | 51, 125, 209 |
| RGB Percent | 20.0%, 49.0%, 82.0% |
| CMYK (approx.) | 76%, 40%, 0%, 18% |
Related Palettes
12 palettes using #337DD1 or similar colors