Toilet paper has the color white because it’s bleached. Without the bleach, the paper would be brownish in color. Companies don’t make coloured toilet paper anymore because dying the bleached paper lots would cost them more money.
Yes! You can still buy colored toilet paper. A quick search on Amazon brings up toilet paper available in every color of the rainbow. You can even get patterned toilet paper or paper with the president’s face on it.
The toilet paper appeared in France in the 60’s and was originally greyish. The colour pink was chosen by marketers because people associates it culturally with purity and mostly with the softness of a healthy young skin.