colormaps.py

import matplotlib.pyplot as plt

cdict = {'red':  [(0.0, 0.0000, 0.0000),
                  (0.125, 0.000, 0.000),
                  (0.5, 1.0000, 1.0000),
                  (0.875, 0.900, 0.900),
                  (1.0, 0.6000, 0.6000)],
        'green': [(0.0, 0.3270, 0.3270),
                  (0.125, 0.545, 0.545),
                  (0.5, 1.0000, 1.0000),
                  (0.875, 0.490, 0.490),
                  (1.0, 0.3270, 0.3270)],
        'blue':  [(0.0, 0.3270, 0.3270),
                  (0.125, 0.545, 0.545),
                  (0.5, 1.0000, 1.0000),
                  (0.875, 0.000, 0.000),
                  (1.0, 0.0000, 0.0000)]}
plt.register_cmap(name='CyOrDark', data=cdict)

cdictbr = {'red':  [(0.0, 0.2039, 0.2039),
                  (0.5, 1.0000, 1.0000),
                  (1.0, 0.9059, 0.9059)],
        'green': [(0.0, 0.5961, 0.5961),
                  (0.5, 1.0000, 1.0000),
                  (1.0, 0.2980, 0.2980)],
        'blue':  [(0.0, 0.8588, 0.8588),
                  (0.5, 1.0000, 1.0000),
                  (1.0, 0.2353, 0.2353)]}
plt.register_cmap(name='BlueRed', data=cdictbr)