#181F81
Blue
HEX
RGB
HSL
About #181F81 Blue
#181F81 is a blue color. In the RGB color model, it is composed of 24 red, 31 green, and 129 blue. In the HSL color space, it has a hue of 236°, saturation of 69%, and lightness of 30%.
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
Use #181F81 in your CSS, SCSS, or Tailwind projects.
Color Properties
236°
Hue
69%
Saturation
30%
Lightness
Blue
Color Harmonies
Colors that work well with #181F81 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #181F81 against white and black backgrounds.
Aa#181F81 on White
Contrast Ratio13.53:1
AA ✓AA Large ✓AAA ✓
Aa#181F81 on Black
Contrast Ratio1.55:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #181F81 across different color formats.
| Format | Value |
|---|---|
| HEX | #181F81 |
| RGB | rgb(24, 31, 129) |
| HSL | hsl(236, 69%, 30%) |
| RGB Decimal | 24, 31, 129 |
| RGB Percent | 9.4%, 12.2%, 50.6% |
| CMYK (approx.) | 81%, 76%, 0%, 49% |
Related Palettes
12 palettes using #181F81 or similar colors