#183D63
Dark Blue
HEX
RGB
HSL
About #183D63 Dark Blue
#183D63 is a dark blue color. In the RGB color model, it is composed of 24 red, 61 green, and 99 blue. In the HSL color space, it has a hue of 210°, saturation of 61%, 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
Use #183D63 in your CSS, SCSS, or Tailwind projects.
Color Properties
210°
Hue
61%
Saturation
24%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #183D63 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #183D63 against white and black backgrounds.
Aa#183D63 on White
Contrast Ratio11.13:1
AA ✓AA Large ✓AAA ✓
Aa#183D63 on Black
Contrast Ratio1.89:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #183D63 across different color formats.
| Format | Value |
|---|---|
| HEX | #183D63 |
| RGB | rgb(24, 61, 99) |
| HSL | hsl(210, 61%, 24%) |
| RGB Decimal | 24, 61, 99 |
| RGB Percent | 9.4%, 23.9%, 38.8% |
| CMYK (approx.) | 76%, 38%, 0%, 61% |
Related Palettes
12 palettes using #183D63 or similar colors