app.py

import gradio as gr

def handler(color):    
    return (f'<h1 style="color:{color};">Hello World!</h1>'
            f'<h1 style="color:{color};">哈囉! 您好!</h1>')

in1=gr.ColorPicker(
    value='#FF00ff',       # 預設顏色
    label='請選擇顏色',     # 元件標籤
    info='請按底下色塊'     # 說明
    )
out1=gr.HTML(label="HTML 效果")
iface=gr.Interface(
    fn=handler,
    inputs=[in1], 
    outputs=[out1],
    title='ColorPicker 元件測試',
    flagging_mode='never',
    )
iface.launch()