#283F9B
Blue
HEX
RGB
HSL
About #283F9B Blue
#283F9B is a blue color. In the RGB color model, it is composed of 40 red, 63 green, and 155 blue. In the HSL color space, it has a hue of 228°, saturation of 59%, and lightness of 38%.
This color has a low lightness value, making it a dark color great for text and bold accents. With moderate saturation, it appears balanced and versatile.
CSS Code & Gradients
Use #283F9B in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
228°
Hue
59%
Saturation
38%
Lightness
Blue
Color Harmonies
Colors that work well with #283F9B based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #283F9B against white and black backgrounds.
Aa#283F9B on White
Contrast Ratio9.23:1
AA ✓AA Large ✓AAA ✓
Aa#283F9B on Black
Contrast Ratio2.27:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #283F9B across different color formats.
| Format | Value |
|---|---|
| HEX | #283F9B |
| RGB | rgb(40, 63, 155) |
| HSL | hsl(228, 59%, 38%) |
| RGB Decimal | 40, 63, 155 |
| RGB Percent | 15.7%, 24.7%, 60.8% |
| CMYK (approx.) | 74%, 59%, 0%, 39% |
Related Palettes
12 palettes using #283F9B or similar colors