A color depends on the light — Silver Dispatch

The color we see depends on the light reaching an object, the way the object reflects or transmits it, and our viewing conditions. A familiar item can look noticeably different beside a window and under an indoor lamp.

Compare the same object in two ordinary settings. Keep the object itself constant and notice the surrounding colors as well as the light source. A photograph introduces additional choices through exposure, processing, and the screen on which it is viewed.

This observation explains why choosing a color from a single picture can be difficult. The representation may be useful while describing only one situation. Seeing the change directly gives a simple question about color a richer physical context.

Bring the idea into a day.

Imagine choosing a paint sample from a photograph rather than the room itself. The capture and display introduce additional conditions between the surface and your judgment.

Another angle on the story.

A precise looking number can still leave an important question unanswered. Check the unit and the range of conditions before giving the digits too much authority.

A few starting points