The invention relates to a composition comprising from 92 to 97% by weight pigment and from 3 to 8% by weight binder, in each case based on the composition, wherein the binder is a mixture comprising: from 5 to 60% by weight, based on the binder, of modified cellulose wherein, on average, per glucose unit, from 0.5 to 1.4 hydroxyl hydrogen atoms are replaced by R1, from 0.25 to 0.6 hydroxyl hydrogen atoms are replaced by R2, or from 0.5 to 1.4 hydroxyl hydrogen atoms are replaced by R1, and from 0 to 0.6 hydroxyl hydrogen atoms are replaced by R2; and from 40 to 95% by weight, based on the binder, of a compound of formula (I) wherein Q is a hydrocarbon radical containing from 8 to 24 carbon atoms, unsubstituted or mono- to tri-substituted by hydroxy or OR1, each R1, independently of any other R1, is C1-C4alkyl or C1-C4alkylcarbonyl, each R2, independently of any other R2, is an organic group different from R1 and containing from 2 to 10 carbon, from 0 to 4 oxygen and from 0 to 2 nitrogen atoms, and R3 and R4 are each independently of the other hydrogen, R1, R2, C5-C8alkyl, C5-C8alkylcarbonyl, C5-C8alkenyl, C5-C8alkenylcarbonyl, C5-C8cycloalkyl, C5-C8cycloalkylcarbonyl, C5-C8cycloalkenyl, C5-C8cycloalkenylcarbonyl, phenyl, benzoyl, tolyl, methylbenzoyl, benzyl, phenylacetyl, phenethyl or styryl. The compositions according to the invention are dust-free and produce outstanding colorations. The use thereof as colorants for, especially, polyolefins and the preparation thereof, especially by aqueous dispersal and spray-drying, are also claimed.