No. The solely impact that the pink coloration would have can be to attenuate all the colours that aren’t pink.
With white mild in, you may nonetheless get a spectrum out, however the blues and greens shall be dimmer than they might be with a transparent prism.
(the positions of the colours is perhaps shifted by a really small quantity as a result of absorption comes with a small change of refractive index.
). Regardless of coloration, all mild has the identical pace so it ought to decelerate on the identical price (known as refraction) when it enters the medium.
However, the refractive index of a fabric also can rely on the wavelength (coloration) of the sunshine.