#FF0400
Vivid Red
HEX
RGB
HSL
About #FF0400 Vivid Red
#FF0400 is a vivid red color. In the RGB color model, it is composed of 255 red, 4 green, and 0 blue. In the HSL color space, it has a hue of 1°, saturation of 100%, and lightness of 50%.
This color has a medium lightness value, making it a balanced tone ideal for both text and UI elements. With high saturation, it appears vibrant and eye-catching.
CSS Code
Use #FF0400 in your CSS, SCSS, or Tailwind projects.
Color Properties
1°
Hue
100%
Saturation
50%
Lightness
Vivid Red
Color Harmonies
Colors that work well with #FF0400 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #FF0400 against white and black backgrounds.
Aa#FF0400 on White
Contrast Ratio3.99:1
AA ✗AA Large ✓AAA ✗
Aa#FF0400 on Black
Contrast Ratio5.27:1
AA ✓AA Large ✓AAA ✗
Color Conversion Table
Complete conversion of #FF0400 across different color formats.
| Format | Value |
|---|---|
| HEX | #FF0400 |
| RGB | rgb(255, 4, 0) |
| HSL | hsl(1, 100%, 50%) |
| RGB Decimal | 255, 4, 0 |
| RGB Percent | 100.0%, 1.6%, 0.0% |
| CMYK (approx.) | 0%, 98%, 100%, 0% |
Related Palettes
12 palettes using #FF0400 or similar colors