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80 lines
1.9 KiB
Python
80 lines
1.9 KiB
Python
"""
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* Author: Cicero Tiago Carneiro Valentim (https://github.com/cicerotcv)
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* Description: Convert hexadecimal (#FF2000) color to RGB (rgb(255, 32, 0)).
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References:
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https://www.w3schools.com/colors/colors_rgb.asp
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https://www.w3schools.com/colors/colors_hexadecimal.asp
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"""
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def hex_to_rgb(hex_color: str) -> str:
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"""
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Converts a hexadecimal color code to RGB values.
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Args:
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hex_color (str): A hexadecimal color code, e.g., "#RGB" or "#RRGGBB".
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Returns:
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str: A string representation of a rgb value "rgb(r, g, b)" containing
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three integers.
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Raises:
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ValueError: If the input hex_color is not a valid hexadecimal color code.
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Examples:
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>>> hex_to_rgb("#FF0000")
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'rgb(255, 0, 0)'
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>>> hex_to_rgb("#00FF00")
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'rgb(0, 255, 0)'
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>>> hex_to_rgb("#123")
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'rgb(17, 34, 51)'
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>>> hex_to_rgb("#000000")
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'rgb(0, 0, 0)'
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>>> hex_to_rgb("#FFFFFF")
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'rgb(255, 255, 255)'
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>>> hex_to_rgb("#0088FF")
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'rgb(0, 136, 255)'
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>>> hex_to_rgb("#0032ccAA")
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Traceback (most recent call last):
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...
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ValueError: Invalid hex color code
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>>> hex_to_rgb("#0032")
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Traceback (most recent call last):
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...
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ValueError: Invalid hex color code
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Note:
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- The function supports both 6-digit and 3-digit hex color codes.
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"""
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hex_color = hex_color.lstrip("#")
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# Check if the input is a valid hex color code
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if not (len(hex_color) == 6 or len(hex_color) == 3):
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raise ValueError("Invalid hex color code")
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# Expand 3-digit hex codes to 6 digits (e.g., "#123" to "#112233")
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if len(hex_color) == 3:
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hex_color = "".join([char * 2 for char in hex_color])
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# Parse the hex values to integers
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red = int(hex_color[0:2], 16)
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green = int(hex_color[2:4], 16)
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blue = int(hex_color[4:6], 16)
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return f"rgb({red}, {green}, {blue})"
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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