DESMA 21 Lecture Notes - Lecture 2: Color Theory, Subtractive Color, Additive Color
Document Summary
10 to 11 colors we can name but in reality there are an al- most in nite number of colors. 10 thousand lightness to darkness that we can identify. 100 red to green, green to blue that we can identify. Pigment vs. light: two different chemical reactions. Additive color (white): for the light source. ~ yellow is a secondary color (already a mix of red and green, adding blue on top of it re- sults in white) Saturation: pick one color and add white/black on either side. Brightness: adding white/black along with changing scale tones. How is rgb different than cmyk: just on the screen versus for printing. Html colors are de ned using a hexadecimal notation (hex) for the combination of red, green and blue color values (rgb) The lowest value that can be given to one of the light sources is 0 (in hex: 00). The high- est value is 255 (in hex: ff).
