A toner composition, comprising an organometal complex compound having the formula (1), which has an electroconductivity of at most 110 &mgr;S/cm when dispersed in ion-exchanged water in an amount of 1 wt %: wherein Ar is an aryl group selected from the group consisting of a substituted or unsubstituted phenyl group and a substituted or unsubstituted naphthyl group, X and Y are —S—, —O—, —CO—, —COO—, —NH— or —NR—, wherein R is C1-4 alkyl; K+ is hydrogen ion, lithium ion, sodium ion, potassium ion, ammonium ion, organoammonium or a mixture thereof; m is the number of azo compound groups coordinated to Fe and is 1, 2, 3 or 6; p is the valence of Fe; n is 1, 2 or 4; and q is 0 or an integer, as a component of an electrostatic image developing non-magnetic toner.