#040D23
Dark Blue
HEX
RGB
HSL
About #040D23 Dark Blue
#040D23 is a dark blue color. In the RGB color model, it is composed of 4 red, 13 green, and 35 blue. In the HSL color space, it has a hue of 223°, saturation of 79%, and lightness of 8%.
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 & Gradients
Use #040D23 in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
223°
Hue
79%
Saturation
8%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #040D23 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #040D23 against white and black backgrounds.
Aa#040D23 on White
Contrast Ratio19.32:1
AA ✓AA Large ✓AAA ✓
Aa#040D23 on Black
Contrast Ratio1.09:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #040D23 across different color formats.
| Format | Value |
|---|---|
| HEX | #040D23 |
| RGB | rgb(4, 13, 35) |
| HSL | hsl(223, 79%, 8%) |
| RGB Decimal | 4, 13, 35 |
| RGB Percent | 1.6%, 5.1%, 13.7% |
| CMYK (approx.) | 89%, 63%, 0%, 86% |
Related Palettes
12 palettes using #040D23 or similar colors