The present work aims to investigate and develop a series of monoazo metal complex for the polyester/wool blends fabrics, These dyes were obtained by the coupling of diazotised 2-aminobenzoic acid , 3-aminobenzoic acid and 4-aminobenzoic acid with 2,3-dihydroxy naphthalene and 2,7-dihydroxy naphthalene These dyes were reacted with nickel chloride, aluminium sulfate and ferrous sulfate and then were dyed on polyester, wool, polyester/wool blend fabric and their dyeing and fastness properties evaluated. The fastness properties of part the dyeing samples were in accord with commercial requirements, and three of the monoazo dyes dyed polyester and wool fabrics to approximately the same depth.