We report a study of the acquisition of colour terms by Russian children which had two main aims: first, to test Berlin & Kay's (1969) theory of colour universals using acquisition order as a measure of basicness; and secondly, to see if the two blue terms of Russian are genuinely basic. Two hundred children aged from three to six-years-old were tested on three colour-tasks – colour term listing, colour term production and colour term comprehension. To a reasonable approximation, the order of colour term acquisition was in accord with Berlin & Kay's theory, but the data are also consistent with the weaker claim that primary terms tend to be learned before derived terms. On balance the data were consistent with Russian exceptionally, having an extra term for the blue region. But, the two blue terms – goluboj ‘light blue’ and sinij ‘dark blue’ – were confused more often than other pairs of terms even by the five- to six-year-old sample.