#100403
Dark Red
HEX
RGB
HSL
About #100403 Dark Red
#100403 is a dark red color. In the RGB color model, it is composed of 16 red, 4 green, and 3 blue. In the HSL color space, it has a hue of 5°, saturation of 68%, and lightness of 4%.
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 #100403 in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
5°
Hue
68%
Saturation
4%
Lightness
Dark Red
Color Harmonies
Colors that work well with #100403 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #100403 against white and black backgrounds.
Aa#100403 on White
Contrast Ratio20.18:1
AA ✓AA Large ✓AAA ✓
Aa#100403 on Black
Contrast Ratio1.04:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #100403 across different color formats.
| Format | Value |
|---|---|
| HEX | #100403 |
| RGB | rgb(16, 4, 3) |
| HSL | hsl(5, 68%, 4%) |
| RGB Decimal | 16, 4, 3 |
| RGB Percent | 6.3%, 1.6%, 1.2% |
| CMYK (approx.) | 0%, 75%, 81%, 94% |
Related Palettes
12 palettes using #100403 or similar colors