Understanding the Context

What Is Purple? Understanding the Color Theory

Purple is a non-spectral color, meaning it doesn’t exist on the visible light spectrum as a single wavelength. Instead, purple is typically created by mixing blue and red pigments—or using a combination of process and pigment in traditional paints. In digital design, purple emerges as a hue generated by blending red and blue in complementary color models like RGB or HSL.

How to Make Purple Using Physical Paints

Key Insights

If you’re working with acrylics, watercolors, oils, or pastels, creating purple is simple:

1. Mix Red and Blue Paints

• Warm Purple: Start with more red—try a deep cadmium red mixed with ultramarine blue in a 7:3 ratio.
  
• Cool Purple: Use more blue, such as a vibrant blue mixed with a touch of red at about a 6:4 ratio.
  
• True Traditional Purple (Venetian Purple): Combine deep red and blue in equal parts for a classic, rich result.

2. Add White or Black for Variations

• Add white to create pale lavender.
  
• Add black to deepen into a morocot or deep amethyst shade.

3. Test and Adjust

Always test on scrap paper or canvas, adjusting the ratios until you achieve your desired shade—purple’s beauty lies in its versatility!

Final Thoughts

Creating Purple in Digital Art and Design

In Photoshop, Illustrator, or web design tools, making purple is seamless:

1. Use the Color Wheel

Start with the secondary color purple—placement between red and blue on the wheel. Adjust brightness and saturation for warmth or coolness.

2. Mix RGB or HSL Values

• In RGB: Pure purple = (128, 0, 128)
  
• In HSL: Hue = 150°, Saturation = 70–90%, Lightness = 40–60% gives vibrant purple.

3. Experiment with Opacity and Textures

Layer transparent purple over other colors to build depth, ideal for digital backgrounds or UI design.