#309BD5
Blue
HEX
RGB
HSL
About #309BD5 Blue
#309BD5 is a blue color. In the RGB color model, it is composed of 48 red, 155 green, and 213 blue. In the HSL color space, it has a hue of 201°, saturation of 66%, 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
Use #309BD5 in your CSS, SCSS, or Tailwind projects.
Color Properties
201°
Hue
66%
Saturation
51%
Lightness
Blue
Color Harmonies
Colors that work well with #309BD5 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #309BD5 against white and black backgrounds.
Aa#309BD5 on White
Contrast Ratio3.1:1
AA ✗AA Large ✓AAA ✗
Aa#309BD5 on Black
Contrast Ratio6.78:1
AA ✓AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #309BD5 across different color formats.
| Format | Value |
|---|---|
| HEX | #309BD5 |
| RGB | rgb(48, 155, 213) |
| HSL | hsl(201, 66%, 51%) |
| RGB Decimal | 48, 155, 213 |
| RGB Percent | 18.8%, 60.8%, 83.5% |
| CMYK (approx.) | 77%, 27%, 0%, 16% |
Related Palettes
12 palettes using #309BD5 or similar colors