The visualization shows the standard table of RGB colors in X Windows. The data is taken from (a copy of) the file /usr/X11R6/lib/X11/rgb.txt on systems with an X11 installation.

The main view in the visualization is a table that lists each color with its name, hexidecimal RGB value (#RRGGBB), and integer values of its red, green, blue, hue, saturation, and brightness color channels. Each cell in the last seven columns of the table fills small circles/squares with the color appropriate to the color or color channel value shown in it.

Two scatterplot matrices display the RGB color cube and HSB color cylinder by drawing colored points at position corresponding to normalized color channel values, e.g. red is drawn at RGB={1.0, 0.0, 0.0}, HSB={0.0, 1.0, 1.0}. Two left-right stereogram pairs display the RGB cube and HSB cylinder similarly.

Three perceptual sliders let the user select ranges on the red, green, and blue color channels independently. All other views filter their contents to show only colors in the selected ranges. The background color control allows the user to pick the background color shown in the scatterplots and 3-D views, in order to make certain color points easier to see.

Visualization (16 KB)

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