#309BD9
Blue
HEX
RGB
HSL
About #309BD9 Blue
#309BD9 is a blue color. In the RGB color model, it is composed of 48 red, 155 green, and 217 blue. In the HSL color space, it has a hue of 202°, saturation of 69%, and lightness of 52%.
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 #309BD9 in your CSS, SCSS, or Tailwind projects.
Color Properties
202°
Hue
69%
Saturation
52%
Lightness
Blue
Color Harmonies
Colors that work well with #309BD9 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #309BD9 against white and black backgrounds.
Aa#309BD9 on White
Contrast Ratio3.08:1
AA ✗AA Large ✓AAA ✗
Aa#309BD9 on Black
Contrast Ratio6.82:1
AA ✓AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #309BD9 across different color formats.
| Format | Value |
|---|---|
| HEX | #309BD9 |
| RGB | rgb(48, 155, 217) |
| HSL | hsl(202, 69%, 52%) |
| RGB Decimal | 48, 155, 217 |
| RGB Percent | 18.8%, 60.8%, 85.1% |
| CMYK (approx.) | 78%, 29%, 0%, 15% |
Related Palettes
12 palettes using #309BD9 or similar colors