def get_colormap(base_color):
    """
    Returns dictionary of RGB equivalents of base color different alpha intervals.
    """
    colormap = {}

    for i in range(10):
        color_tmp = tuple(((1 - i/10) * 255) + (i/10 * v) for v in base_color)
        colormap[i] = color_tmp
    colormap[10] = tuple(base_color)
    
    return colormap