Method _convert_hex_to_excel

pandas/io/formats/excel.py:478–483

(self, color_string: str)

        return bool(color_string.startswith("#"))

    def _convert_hex_to_excel(self, color_string: str) -> str:
        code = color_string.lstrip("#")
        if self._is_shorthand_color(color_string):
            return (code[0] * 2 + code[1] * 2 + code[2] * 2).upper()
        else:
            return code.upper()

    def _is_shorthand_color(self, color_string: str) -> bool:
        """Check if color code is shorthand.