#51B4E1
Blue
HEX
RGB
HSL
About #51B4E1 Blue
#51B4E1 is a blue color. In the RGB color model, it is composed of 81 red, 180 green, and 225 blue. In the HSL color space, it has a hue of 199°, saturation of 71%, and lightness of 60%.
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
Use #51B4E1 in your CSS, SCSS, or Tailwind projects.
Color Properties
199°
Hue
71%
Saturation
60%
Lightness
Blue
Color Harmonies
Colors that work well with #51B4E1 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #51B4E1 against white and black backgrounds.
Aa#51B4E1 on White
Contrast Ratio2.34:1
AA ✗AA Large ✗AAA ✗
Aa#51B4E1 on Black
Contrast Ratio8.97:1
AA ✓AA Large ✓AAA ✓
Color Conversion Table
Complete conversion of #51B4E1 across different color formats.
| Format | Value |
|---|---|
| HEX | #51B4E1 |
| RGB | rgb(81, 180, 225) |
| HSL | hsl(199, 71%, 60%) |
| RGB Decimal | 81, 180, 225 |
| RGB Percent | 31.8%, 70.6%, 88.2% |
| CMYK (approx.) | 64%, 20%, 0%, 12% |
Related Palettes
12 palettes using #51B4E1 or similar colors