#666FBF
Blue
HEX
RGB
HSL
About #666FBF Blue
#666FBF is a blue color. In the RGB color model, it is composed of 102 red, 111 green, and 191 blue. In the HSL color space, it has a hue of 234°, saturation of 41%, and lightness of 57%.
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 & Gradients
Use #666FBF in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
234°
Hue
41%
Saturation
57%
Lightness
Blue
Color Harmonies
Colors that work well with #666FBF based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #666FBF against white and black backgrounds.
Aa#666FBF on White
Contrast Ratio4.57:1
AA ✓AA Large ✓AAA ✗
Aa#666FBF on Black
Contrast Ratio4.59:1
AA ✓AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #666FBF across different color formats.
| Format | Value |
|---|---|
| HEX | #666FBF |
| RGB | rgb(102, 111, 191) |
| HSL | hsl(234, 41%, 57%) |
| RGB Decimal | 102, 111, 191 |
| RGB Percent | 40.0%, 43.5%, 74.9% |
| CMYK (approx.) | 47%, 42%, 0%, 25% |
Related Palettes
12 palettes using #666FBF or similar colors