#003666
Dark Blue
HEX
RGB
HSL
About #003666 Dark Blue
#003666 is a dark blue color. In the RGB color model, it is composed of 0 red, 54 green, and 102 blue. In the HSL color space, it has a hue of 208°, 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 #003666 in your CSS, SCSS, or Tailwind projects.
Color Properties
208°
Hue
100%
Saturation
20%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #003666 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #003666 against white and black backgrounds.
Aa#003666 on White
Contrast Ratio12.21:1
AA ✓AA Large ✓AAA ✓
Aa#003666 on Black
Contrast Ratio1.72:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #003666 across different color formats.
| Format | Value |
|---|---|
| HEX | #003666 |
| RGB | rgb(0, 54, 102) |
| HSL | hsl(208, 100%, 20%) |
| RGB Decimal | 0, 54, 102 |
| RGB Percent | 0.0%, 21.2%, 40.0% |
| CMYK (approx.) | 100%, 47%, 0%, 60% |
Related Palettes
12 palettes using #003666 or similar colors