reflectance curve

A reflectance curve shows how much light a surface reflects at different wavelengths (colors). It’s like a graph that plots the percentage of light reflected across the spectrum, from red to violet. If a surface reflects more light at certain wavelengths, that color will appear more vivid or intense. For example, a mirror has a high reflectance across all wavelengths, while a matte black surface reflects very little light at any wavelength. This curve helps scientists and designers understand a material’s color, appearance, and how it interacts with light.