Body Colour - on the Lutino would be White on the Albino
The Albino shall be clear white without any blue or brown tinge.
The Lutino shall be clear yellow without any green or brown tinge.
The yellow body colour should be a rich buttercup yellow.
For both there shall be no markings at all.
The best way to investigate for tinge is to look at the upper rump in bright daylight.
Information from PHT Budgerigars