#283F51
Dark Blue
HEX
RGB
HSL
About #283F51 Dark Blue
#283F51 is a dark blue color. In the RGB color model, it is composed of 40 red, 63 green, and 81 blue. In the HSL color space, it has a hue of 206°, saturation of 34%, and lightness of 24%.
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 #283F51 in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
206°
Hue
34%
Saturation
24%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #283F51 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #283F51 against white and black backgrounds.
Aa#283F51 on White
Contrast Ratio10.94:1
AA ✓AA Large ✓AAA ✓
Aa#283F51 on Black
Contrast Ratio1.92:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #283F51 across different color formats.
| Format | Value |
|---|---|
| HEX | #283F51 |
| RGB | rgb(40, 63, 81) |
| HSL | hsl(206, 34%, 24%) |
| RGB Decimal | 40, 63, 81 |
| RGB Percent | 15.7%, 24.7%, 31.8% |
| CMYK (approx.) | 51%, 22%, 0%, 68% |
Related Palettes
12 palettes using #283F51 or similar colors