#21303F
Dark Blue
HEX
RGB
HSL
About #21303F Dark Blue
#21303F is a dark blue color. In the RGB color model, it is composed of 33 red, 48 green, and 63 blue. In the HSL color space, it has a hue of 210°, saturation of 31%, and lightness of 19%.
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 #21303F in your CSS, SCSS, or Tailwind projects.
Color Properties
210°
Hue
31%
Saturation
19%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #21303F based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #21303F against white and black backgrounds.
Aa#21303F on White
Contrast Ratio13.47:1
AA ✓AA Large ✓AAA ✓
Aa#21303F on Black
Contrast Ratio1.56:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #21303F across different color formats.
| Format | Value |
|---|---|
| HEX | #21303F |
| RGB | rgb(33, 48, 63) |
| HSL | hsl(210, 31%, 19%) |
| RGB Decimal | 33, 48, 63 |
| RGB Percent | 12.9%, 18.8%, 24.7% |
| CMYK (approx.) | 48%, 24%, 0%, 75% |
Related Palettes
12 palettes using #21303F or similar colors