1. ImageColor getrgb

See: https://pillow.readthedocs.io/en/stable/reference/ImageColor.html#PIL.ImageColor.getrgb

See: https://htmlcolorcodes.com/color-names/

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1.1. getrgb

The function, ImageColor.getrgb(color), takes a color string and returns an rgb tuple.

The getrgb syntax is:

ImageColor.getrgb(color)

color is a color which may include standard html color names strings and hex colour strings.

e.g. “red” is converted to (255, 0, 0)

e.g. “#ffccff” is converted to (255, 204, 255)

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1.2. Examples

The function, get_rgb_colors, passes in a list of colours and returns a list of rgb tuples.

The function, get_color_colors, passes in a list of colours and returns a list of greyscale values.

from PIL import Image, ImageColor


def get_rgb_colors(colors):
    colors_rgb = [ImageColor.getrgb(color) for color in colors]
    return colors_rgb

def get_color_colors(colors):
    colors_g = [ImageColor.getcolor(color, mode="L") for color in colors]
    return colors_g

colors = ["red", "green", "blue", "yellow"]
print(get_rgb_colors(colors))
# [(255, 0, 0), (0, 128, 0), (0, 0, 255), (255, 255, 0)]
print(get_color_colors(colors))
# [76, 75, 29, 226]

colors = ["rgb(255, 0, 0)", "rgb(0, 128, 0)"]
print(get_rgb_colors(colors))
# [(255, 0, 0), (0, 128, 0)]
print(get_color_colors(colors))
# [76, 75]

colors = ["rgb(100%, 0%, 0%)", "rgb(0%, 50%, 0%)"]
print(get_rgb_colors(colors))
# [(255, 0, 0), (0, 128, 0)]
print(get_color_colors(colors))
# [76, 75]

colors = ["#ff00ff", "#00ffff", "#ffff00"]
print(get_rgb_colors(colors))
# [(255, 0, 255), (0, 255, 255), (255, 255, 0)]
print(get_color_colors(colors))
# [105, 179, 226]

colors = ["hsv(120,100%,100%)", "hsv(120,100%,50%)", "hsv(120,50%,100%)"]
print(get_rgb_colors(colors))
# [(0, 255, 0), (0, 128, 0), (128, 255, 128)]
print(get_color_colors(colors))
# [150, 75, 203]

# with transparency
colors = ["#ff0000ff", "#ff0000cc", "#ff000080"]
print(get_rgb_colors(colors))
# [(255, 0, 0, 255), (255, 0, 0, 204), (255, 0, 0, 128)]
print(get_color_colors(colors))
# [76, 76, 76]