Washroom design planning: which rules should be remembered?

A house or an apartment design should be individual and every room must be decorated according to personal preferences but professionals’ recommendations should be also taken into account. That is especially important for washrooms where we spend at least 2 or even 3 hours every day.
Psychologists recommend using calm pastel tones in a washroom but quite often people are ‘in love’ with bright colors and dream about using those colors inside a bathroom. Such decision is possible but in that case the colors should be mixed with calmer tones. On the one hand bright colors may be applied and on the other hand charming contrast is obtained.
E.g. red color may be perfectly combined with white or grey while purple or pink is recommended to be mixed with blue tones. Remember that even for spacious washrooms there recommended not to mix more than 3 colors.
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