Line of Purples

What it is

The line of purples is the edge in chromaticity diagrams connecting the red and violet ends of the visible spectrum. It represents purples and magentas that do not correspond to a single wavelength.

Basics

• It helps explain why purple/magenta are perceived colors but not single spectral lights.
• It is especially useful when comparing the spectrum to color wheels.
• The concept belongs to color science and perception, not pigment history.

Notes for later expansion

• Later expansion should include a simple chromaticity diagram explanation.
• Good cross-links: Purple, Magenta, Spectrum, Wavelength.

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