#155AEF
Vivid Blue
HEX
RGB
HSL
About #155AEF Vivid Blue
#155AEF is a vivid blue color. In the RGB color model, it is composed of 21 red, 90 green, and 239 blue. In the HSL color space, it has a hue of 221°, saturation of 87%, and lightness of 51%.
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 #155AEF in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
221°
Hue
87%
Saturation
51%
Lightness
Vivid Blue
Color Harmonies
Colors that work well with #155AEF based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #155AEF against white and black backgrounds.
Aa#155AEF on White
Contrast Ratio5.61:1
AA ✓AA Large ✓AAA ✗
Aa#155AEF on Black
Contrast Ratio3.74:1
AA ✗AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #155AEF across different color formats.
| Format | Value |
|---|---|
| HEX | #155AEF |
| RGB | rgb(21, 90, 239) |
| HSL | hsl(221, 87%, 51%) |
| RGB Decimal | 21, 90, 239 |
| RGB Percent | 8.2%, 35.3%, 93.7% |
| CMYK (approx.) | 91%, 62%, 0%, 6% |
Related Palettes
12 palettes using #155AEF or similar colors