#66B5FF
Vivid Blue
HEX
RGB
HSL
About #66B5FF Vivid Blue
#66B5FF is a vivid blue color. In the RGB color model, it is composed of 102 red, 181 green, and 255 blue. In the HSL color space, it has a hue of 209°, saturation of 100%, and lightness of 70%.
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 #66B5FF in your CSS, SCSS, or Tailwind projects.
Color Properties
209°
Hue
100%
Saturation
70%
Lightness
Vivid Blue
Color Harmonies
Colors that work well with #66B5FF based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #66B5FF against white and black backgrounds.
Aa#66B5FF on White
Contrast Ratio2.18:1
AA ✗AA Large ✗AAA ✗
Aa#66B5FF on Black
Contrast Ratio9.62:1
AA ✓AA Large ✓AAA ✓
Color Conversion Table
Complete conversion of #66B5FF across different color formats.
| Format | Value |
|---|---|
| HEX | #66B5FF |
| RGB | rgb(102, 181, 255) |
| HSL | hsl(209, 100%, 70%) |
| RGB Decimal | 102, 181, 255 |
| RGB Percent | 40.0%, 71.0%, 100.0% |
| CMYK (approx.) | 60%, 29%, 0%, 0% |
Related Palettes
12 palettes using #66B5FF or similar colors