The present invention relates to a compound chosen from among the dyes of the type of pattern azomethinic pyrazolopyridine of formula (i) and their shapes buffy of formula (ii), following, as well as their optical isomers, geometrical isomers, the object, the addition salt with an acid or base, and their solvates: the invention also relates to the use of these specific compounds, for dyeing keratin fibres.
