1. What is Hue?

Hue is one of the main properties of color in the HSL (Hue, Saturation, Lightness) color model. It represents the dominant wavelength of the color and is measured in degrees (0-360) around a color wheel.

2. How Does the Calculator Work?

The calculator uses the following formula to convert RGB values to Hue:

Where:

• \( R \) — Red component (0-255)
• \( G \) — Green component (0-255)
• \( B \) — Blue component (0-255)
• \( \text{atan2} \) — Two-argument arctangent function
• \( \pi \) — Mathematical constant Pi (~3.14159)

Explanation: The formula calculates the angle in the color wheel that represents the dominant color wavelength from the RGB components.

3. Importance of Hue Calculation

Details: Hue is fundamental in color theory and digital design. It helps in color selection, creating color harmonies, and converting between color models.

4. Using the Calculator

Tips: Enter RGB values (0-255 for each component). The calculator will compute the corresponding hue angle in degrees (0-360°).

5. Frequently Asked Questions (FAQ)

Q1: What does the hue value represent?
A: Hue represents the color's position on the color wheel, with 0°=red, 120°=green, 240°=blue, and 360°=red again.

Q2: How is hue different from color?
A: Hue is one aspect of color (the pure pigment), while color also includes saturation (intensity) and lightness (brightness).

Q3: What's the difference between HSL and HSV?
A: Both use hue, but HSL has Lightness while HSV has Value/Brightness. They represent color spaces differently.

Q4: When would I need to calculate hue?
A: Useful for color analysis, image processing, design tools, and when converting between color models.

Q5: Why does the formula use atan2?
A: atan2 handles all quadrants correctly and avoids division by zero issues that a simple arctangent might encounter.