What colors (in order) would best absorb a green 529nm laser light?
You haven’t provided enough information to answer that question. You would need the spectral reflectance of the material (or transmittance if it was not opaque) for each color and then you would just order them from least reflective to most. For example, a black object would absorb almost all the energy at any wavelength, but a red material might well absorb even more at that particular green wavelength. You can’t tell from just the color names.
