Khroma

Adopted by users who train the model with personal color preferences. The tool analyzes your chosen colors and outputs practical palettes for various design contexts. It requires no sign‑up and appears free (conservative inference; no official pricing found). Evidence is limited to Chinese community recommendations and tool‑listing pages — no hands‑on reviews or case studies. It is not a professional color correction tool; instead, it’s a learner‑driven palette generator for exploratory design.