Colored wax articles

A solid, colored, candle comprising:

• a natural and/or synthetic wax,
• a colorant, and a compound of the formula (1)
• wherein R1 is independently C1-20 alkyl, C1-20 alkoxyalkyl, C1-20 hydroxyalkyl,
• C1-20 alkenyl, substituted C1-20 alkenyl groups, C1-20-alkoxy-C1-20-alkyl groups,
• C1-20-oxy-N-C1-20-alkyl groups, —N-cyclic-C1-10-alkyl groups, and cyclic-N-C1-10-alkyl groups;
• R11 is hydrogen or C1-C8 alkyl;
• p and q are independently 0 or 1;
• Ar is a substituted aromatic single ring, an unsubstituted aromatic single ring, a substituted aromatic fused 2 or 3 ring group, an unsubstituted aromatic fused 2 or 3 ring group, a heteroaromatic single ring, or a heteroaromatic fused 2 or 3 ring group;
• R3 is hydrogen, C1-C4alkyl, C5-C12cycloalkyl unsubstituted or mono-, di- or tri- substituted by C1-C4alkyl, or C7-C9 phenylalkyl unsubstituted or mono-, di- or tri- substituted on the phenyl by Cl—C4alkyl, or a hindered amino group selected from (i) to (xi):
• wherein R, R′, R′1, R′2 and R5 are independently either hydrogen, C,1-12alkyl, C1-8alkoxy, or —COR3′, where R3. is hydrogen, C1-6alkyl, phenyl, —COO(C1-4alkyl) or NR15R16 where R15 and R16 are independently hydrogen, C1-12alkyl, C1-6cycloalkyl, phenyl or (C1-12alkyl)phenyl;
• or R15 and R16 together with the N-atom to which they are attached form a five- to seven-membered ring which may contain an additional N— or O-atom;
• n is 0 or 1 (structure iv);
• Y is the group —NCO or —OCN,
• where CO forms part of the cyclic structure;
• each R6 of structure (iii) independently is selected from hydrogen,
• C1-12alkyl or phenyl provided only one R6 can be phenyl, or both groups R6 together form the group —(CH2)m—;
• where m is 2 to 11, —C(CH3)2—, —C(CH3)2—CH2—CH2— or —C(CH3)CH2CH2CH(CH3)—.