The first implication of photons being ejected from colored object is that, blue light will illuminate everything. Even red objects reflect red photons, with higher energy, when illuminated in blue light. Red objects appear magenta in blue light. But blue objects do not eject blue photons in red light, and appears dark. Green objects appear cyan colored in blue light but do not eject any photons in red light and appear dark.
Cyan which is the combination of blue and green, appear green in green light but light cyan in blue light. Under both blue and green light it appears cyan. This is so because blue light also eject green photons.
Blue light has higher frequency than green light and red light has the lowest frequency in the visible spectrum. And
\(h_p.f=\psi_p+\Phi_p\)
photons are ejected as long as
\(h_p.f\ge\psi_p\)
and so, \(\Phi_p\ge0\).
Ultraviolet would then appears white, as it is able to eject all color photons.
