Colourless detergent mixtures are proposed, containing: a) alkyl- and/or alkenyl-oligoglycosides of formula (I) R<1>O-[G]p, wherein R<1> represents an alkyl and/or alkenyl group with 4-22 carbon atoms, G represents a sugar group with 5 or 6 carbon atoms, and p is a number between 1 and 10; and b) violet dyes which absorb at least 70 % of light within a wavelength range of 480 to 580 nm.
