Evolution of human colour vision lights, which appear to be clear. Other colour perception issues include having trouble distinguishing yellows from reds and violet, lavender and purple from blue. In other cases, objects that reflect both red and blue light may appear to just be blue to these individuals. Deuteranopes, who are missing medium wavelength sensitive cones, are similar to protanopes in that they cannot distinguish between colours in the green-yellow-red part of the electromagnetic spectrum. However, deuteranopes do not suffer from dimming issues. For example, purple colors are not seen as being opposite to other colours in the spectrum but instead appear to be
Blue Is the Warmest Colour blue from her hair and adopts a more natural, conservative hairstyle. Reviewer Spencer Wolff noted the political stance adopted by Adèle, which changes as her life experiences change and reflect her alternating views: ""Blue is the Warmest Colour" is no different; at least, at first. Framed by black and Arab faces, Adèle marches in a protest to demand better funding for education. The music, "On lâche rien" ("We will never give up!"), by the Algerian-born Kaddour Haddadi, is the official song of the French Communist Party. Yet, soon after she begins her relationship with Emma, we see Adèle marching again,