This brief paper is designed to analyse the system of Tibetan
color terminology. Since such a clarification has not been attempted
yet, this paper is rather descriptive than theoretical,
When terminology is analysed, the understanding of the
informant and the linguistic investigation (including historical
analysis) hold the same level of significance in this paper. In that
sense, this argument is fairly different from that of Berlin & Kay.
A speculative hypothesis on the historical change of Proto-
Tibeto-Burman system of color terms down to Tibetan, from the
point of view of Tibeto-Burman comparative linguistics, is presented.