[2] A papule can be flesh colored, yellow, white, brown, red, blue or purplish.

[4] A papule's colour might indicate its cause, such as white in milia, red in eczema, yellowish in xanthoma and black in melanoma.

[2] A papule can be flesh colored, yellow, white, brown, black, blue or purplish, or varying shades of red.

[7] Papules with scale on the palms and soles may occur in secondary syphilis, psoriasis, eczema, tinea manuum, mycosis fungoides.

[6] In lichen planus papules may be itchy, flat-topped, polygonal, purplish with white streaks, and can be solitary, or occur in clusters or in a line.