"slight coloration" is a correct and usable phrase in written English, and it is typically used to refer to the subtle addition of color to something.
For example, "The painting featured slight coloration in the sky, creating a soft blue hue."
If the reaction with 14 % CaO/CNF is, for example, allowed continue to 100%% glycerol conversion, the product mixture is characterized by a slight coloration, corresponding to Gardner color number 1.3, and an average chain length of n=4.5 glycerol units per molecule.
The dispersion effect is quite subtle; it can be seen as a slight coloration of the caustics.
The combination of sucrose plus atrazine (SA) led to an intermediate state with slight coloration maintained in young leaves throughout the treatment.
Except for a slight coloration in pseudostem cross sections, no background staining was observed in untransformed control tissues and pCAMBIA-1391Z tissuesrmedatassues (data not shown).
There was a striking decrease in staining of the amiR-comt4 stem sections, in which the majority of tissue stained pale brown in color, with slight purple coloration seen in the outer regions of the pith.
This limits anthocyanin uptake, generating a slight pinkish coloration.
Adults (male and female alike): The upper parts of the body, and sides of head, are plain green, with a slight blue coloration posteriorly (Ridgway 1914).
The House vote approving the inquiry had a slight protective coloration of bipartisanship, with 31 Democrats voting with the Republicans, in fear, perhaps, of being demagogued as blatantly tolerant of the President's transgressions.
After molten salt process, a slight yellow coloration was observed.
The resulting microemulsion solution acquired a very slight rose coloration.
At least nine subspecies are generally recognized, although geographical variation between them is generally rather minor, involving slight differences in overall coloration in most instances.
