Miscellaneous tools for colormaps or otherwise dealing with color graphics.
A set of seven carefully matched perceptually uniform sequential colormaps. These are tinted gray scales, designed particularly for displaying multiple data sets (say density and temperature) in side by side filled mesh plots, or to distinguish several adjacent materials when plotting a single quantity (say density of fuel and ablator). The seven maps correspond to RGB and CMYK, called (in that order) red, green, blue, cyan, purple, gold, and gray.
The (gold, blue, gray) set have nearly identical appearance to normal and colorblind viewers. The (blue, gray, red) set are close to the hues in the diverging coolwarm colormap designed by Kenneth Moreland, and are also easily distinguished by colorblind viewers. Other combinations are less colorblind-friendly.
All the maps are arranged from dark to light. You can append "_r" to the name to get the same map reversed (from light to dark). You can also append any pair of names to produce a diverging colormap, for example "blue_red" goes from dark blue to light blue, switches to light red and continues to dark red (very similar to coolwarm). If you want to go from light to dark to light, connect the map names with "r", like "blue_r_red". (Altogether 14 sequential and 84 diverging colormap names are defined.)
The module defines a hueset object, which changes the current palette. For example, hueset.gold changes the current palette to gold. There is also a hue object, which is the same as hueset except that it returns the palette as a matplotlib colormap.
Here are the basic sequential color maps:
