"Given the challenge that the Claude chatbot faced in specifying a perceptual uniform Triad color harmony that passes color deficiency, I decided to explore how ChatGPT-5 might handle this request. ChatGPT-5 provided a straightforward solution that works in both traditional and perceptual uniform color spaces. I describe this amazing solution here. Let's begin our journey by first defining the concepts of a triad color harmony, perceptual uniformity and color deficiency. From there, the ChatGPT-5 color suggestion can be examined in detail."
"The Triad Color Harmony: Color harmony is the process of choosing colors on a color wheel that work well together in the composition of an image. Like concepts in music, these harmonies are based around color combinations on the color wheel that help to provide common guidelines for how color hues will work together. Isaac Newton is credited with creating the color wheel concept when he closed the linear color spectrum into a color circle in the early 1700s."
"Initial Color Circle concept developed by Issac Newton. Color Squares added by Theresa-Marie Rhyne for illustration purposes. Two color spaces frequently used to form the basis for color wheels are the traditional Red-Yellow-Blue (RYB) color space used by painters for centuries and the Red-Green-Blue (RGB) color space used for desktop and mobile display devices. The color spaces yield slightly different color harmony results when colorizing a data visualization."
A triad color harmony comprises three hues evenly spaced at 120 degrees on a color wheel. Perceptual uniformity ensures numeric differences correspond to perceived color differences, improving consistency across color spaces. Color deficiency refers to color vision impairments that require palettes to remain distinguishable under simulated deficiency conditions. Two common color wheels derive from RYB (painters) and RGB (displays), producing different harmony outcomes when applied to visualizations. ChatGPT-5 provided a straightforward triad solution that functions in both traditional and perceptual uniform color spaces while aiming to remain robust under color deficiency simulations.
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