The value of the Brewster angle for a transparent medium is different for lights of different colours.
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Brewster’s angle, $\text{i}_\text{p}=\tan^{-1}(\text{n})$
As refractive index n varies as inverse value of wavelength; it is different for lights of different wavelengths (colours), therefore, Brewster’s angle is different for lights of different colours.
As refractive index n varies as inverse value of wavelength; it is different for lights of different wavelengths (colours), therefore, Brewster’s angle is different for lights of different colours.
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