#003366
Dark Blue
HEX
RGB
HSL
About #003366 Dark Blue
#003366 is a dark blue color. In the RGB color model, it is composed of 0 red, 51 green, and 102 blue. In the HSL color space, it has a hue of 210°, saturation of 100%, and lightness of 20%.
This color has a low lightness value, making it a dark color great for text and bold accents. With high saturation, it appears vibrant and eye-catching.
CSS Code
Use #003366 in your CSS, SCSS, or Tailwind projects.
Color Properties
210°
Hue
100%
Saturation
20%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #003366 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #003366 against white and black backgrounds.
Aa#003366 on White
Contrast Ratio12.61:1
AA ✓AA Large ✓AAA ✓
Aa#003366 on Black
Contrast Ratio1.67:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #003366 across different color formats.
| Format | Value |
|---|---|
| HEX | #003366 |
| RGB | rgb(0, 51, 102) |
| HSL | hsl(210, 100%, 20%) |
| RGB Decimal | 0, 51, 102 |
| RGB Percent | 0.0%, 20.0%, 40.0% |
| CMYK (approx.) | 100%, 50%, 0%, 60% |
Related Palettes
12 palettes using #003366 or similar colors