Original Color
Inverted Color
Contrast Ratio
Contrast Importance
Proper contrast between text and background is essential for accessibility. According to WCAG (Web Content Accessibility Guidelines):
- AA (Minimum): 4.5:1 for normal text, 3:1 for large text
- AAA (Enhanced): 7:1 for normal text, 4.5:1 for large text
Color Inversion Theory
What is an inverted color?
The inverted color (or negative) is obtained by subtracting each RGB component from the maximum value (255). Mathematically: R' = 255 - R, G' = 255 - G, B' = 255 - B. This produces the opposite color in the RGB spectrum.
Design usage
Color inversion is useful for:
- Creating dark/light versions of interfaces
- Generating striking visual effects
- Improving readability on different backgrounds
- Designing dark modes for applications
- Creating "photographic negative" effects
Professional tips
When inverting colors for web design:
- Always verify the contrast ratio
- Consider slightly adjusting the inverted color for better readability
- Test with real users to ensure accessibility
- For dark modes, don't just invert colors but adjust tones