#171B21
Dark Blue
HEX
RGB
HSL
About #171B21 Dark Blue
#171B21 is a dark blue color. In the RGB color model, it is composed of 23 red, 27 green, and 33 blue. In the HSL color space, it has a hue of 216°, saturation of 18%, and lightness of 11%.
This color has a low lightness value, making it a dark color great for text and bold accents. With low saturation, it appears muted and subtle.
CSS Code
Use #171B21 in your CSS, SCSS, or Tailwind projects.
Color Properties
216°
Hue
18%
Saturation
11%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #171B21 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #171B21 against white and black backgrounds.
Aa#171B21 on White
Contrast Ratio17.28:1
AA ✓AA Large ✓AAA ✓
Aa#171B21 on Black
Contrast Ratio1.22:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #171B21 across different color formats.
| Format | Value |
|---|---|
| HEX | #171B21 |
| RGB | rgb(23, 27, 33) |
| HSL | hsl(216, 18%, 11%) |
| RGB Decimal | 23, 27, 33 |
| RGB Percent | 9.0%, 10.6%, 12.9% |
| CMYK (approx.) | 30%, 18%, 0%, 87% |
Related Palettes
12 palettes using #171B21 or similar colors