#040A17
Dark Blue
HEX
RGB
HSL
About #040A17 Dark Blue
#040A17 is a dark blue color. In the RGB color model, it is composed of 4 red, 10 green, and 23 blue. In the HSL color space, it has a hue of 221°, saturation of 70%, and lightness of 5%.
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 & Gradients
Use #040A17 in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
221°
Hue
70%
Saturation
5%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #040A17 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #040A17 against white and black backgrounds.
Aa#040A17 on White
Contrast Ratio19.79:1
AA ✓AA Large ✓AAA ✓
Aa#040A17 on Black
Contrast Ratio1.06:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #040A17 across different color formats.
| Format | Value |
|---|---|
| HEX | #040A17 |
| RGB | rgb(4, 10, 23) |
| HSL | hsl(221, 70%, 5%) |
| RGB Decimal | 4, 10, 23 |
| RGB Percent | 1.6%, 3.9%, 9.0% |
| CMYK (approx.) | 83%, 57%, 0%, 91% |
Related Palettes
12 palettes using #040A17 or similar colors