permanent colors containing para-dyes would fall into which color category
permanent (comparative more permanent, superlative most permanent) Nothing in this world is truly permanent. Things that had been permanent and unquestionable were suddenly thrown into doubt. Lasting for an indefinitely long time. The countries are now locked in a permanent state of conflict. There are nine meanings listed in OED's entry for the word permanent, three of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.
Hair Color 101: The Difference Between Semi-Permanent and Permanent ...
