Color occupies a remarkably dense conceptual territory within the depth-psychology corpus, functioning simultaneously as alchemical stage-marker, imaginal medium, archetypal symbol, therapeutic agent, and phenomenological event. Jung’s alchemical studies establish the most systematic framework, reading the four classical operations — nigredo, albedo, citrinitas, rubedo — as chromatic indices of psychic transformation, with the subsequent loss of citrinitas from the Western canon serving Hillman as evidence of a civilizational repression. Hillman extends this further in Alchemical Psychology, treating individual colors — black, blue, yellow, green, white — as autonomous psychological forces rather than mere symbolic counters; blue in particular becomes for him the very color of imagination, while black is rehabilitated from Newtonian non-color to primordial psychological ground. Corbin traces a cognate tradition in Iranian Sufism, where Semnani’s subtle physiology of colored centers links Goethe’s Farbenlehre to mystical experience, insisting that color is a spiritual event of the soul before it is a sensory datum. McNiff argues from the art-therapy tradition that the professional marginalization of color reflects an unconscious bias toward form and objectification, and that color carries irreducible therapeutic ‘medicines.’ Estes and Jodorowsky contribute cross-cultural mythological readings, reading red, black, and white as primal cosmological forces. Together these voices stage a contest between systematic symbolism and irreducible phenomenological multiplicity.