The lie of having the same brightness, changing colors to suit the human eye

We matched the brightness exactly, but the yellow is bright and the blue is dark. Even though we fixed the saturation and only changed the brightness, the colors look faded. The numbers are accurate, but it looks awkward to the eye. What exactly was the brightness we were adjusting?


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Jongmin Park
From freelancer to head of design at a unicorn startup, I've been creating impact through brand and product design for over 18 years. Currently, as CEO and editor-in-chief of Design Compass, I research design that drives business impact.

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