#660000
Dark Red
HEX
RGB
HSL
About #660000 Dark Red
#660000 is a dark red color. In the RGB color model, it is composed of 102 red, 0 green, and 0 blue. In the HSL color space, it has a hue of 0°, 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 #660000 in your CSS, SCSS, or Tailwind projects.
Color Properties
0°
Hue
100%
Saturation
20%
Lightness
Dark Red
Color Harmonies
Colors that work well with #660000 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #660000 against white and black backgrounds.
Aa#660000 on White
Contrast Ratio13.42:1
AA ✓AA Large ✓AAA ✓
Aa#660000 on Black
Contrast Ratio1.56:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #660000 across different color formats.
| Format | Value |
|---|---|
| HEX | #660000 |
| RGB | rgb(102, 0, 0) |
| HSL | hsl(0, 100%, 20%) |
| RGB Decimal | 102, 0, 0 |
| RGB Percent | 40.0%, 0.0%, 0.0% |
| CMYK (approx.) | 0%, 100%, 100%, 60% |
Related Palettes
12 palettes using #660000 or similar colors