Political colour Political colour Political colours are colours used to represent a political party, either officially or unofficially. Parties in different countries with similar ideologies sometimes use similar colours. For example, the colour red symbolises left-wing ideologies in many countries (see the red flag, Red Army and Red Scare) while the colour orange symbolizes Christian democratic political ideology. However, the political associations of a given colour vary from country to country: red is also the colour associated with the conservative Republican Party in the United States. Politicians making public appearances will often identify themselves by wearing rosettes, flowers or ties in the
Colour cast Colour cast A colour cast is a tint of a particular colour, usually unwanted, which affects the whole, or portion, of a photographic image evenly. Certain types of light can cause film and digital cameras to have a colour cast. Illuminating a subject with light sources of different colour temperatures will usually cause colour cast problems in the shadows. In general, the human eye does not notice the unnatural colour, because our eyes and brains adjust and compensate for different types of light in ways that cameras cannot. In film, colour casts can also be caused by problems in development.