ctk-colorpicker-plus

An extended and modernized color picker for CustomTkinter, featuring both a modal dialog and embeddable widget with a color wheel, brightness slider, and hex entry.

Forked from the original CTkColorPicker by Akash Bora (Akascape) - with bug fixes, enhancements, and new features.

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Features

• Two usage modes:
  • AskColor - modal dialog for picking a color
  • CTkColorPicker - embeddable widget for your layouts
• Accurate reticle positioning - fixed hue/saturation calculation bug
• Brightness slider - smooth 0–255 range
• Hex entry field - accepts user input, short (#fff) or full (#ffffff) hex values
• Real-time updates - changes propagate immediately to the UI and optional callbacks
• Appearance-mode aware - adapts to light/dark or system themes in CustomTkinter
• Fully type-hinted and ruff/black formatted

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Installation

pip install ctk-colorpicker-plus

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Quick Start

Modal Dialog

import customtkinter
from ctk_colorpicker_plus import AskColor

customtkinter.set_appearance_mode("light")

root = customtkinter.CTk()

def pick_color():
    dialog = AskColor(initial_color="#ff0000")
    color = dialog.get()
    if color:
        print(f"Selected: {color}")

btn = customtkinter.CTkButton(root, text="Pick a color", command=pick_color)
btn.pack(pady=20)

root.mainloop()

Embedded Widget

import customtkinter
from ctk_colorpicker_plus import CTkColorPicker

def on_color_change(hex_color: str):
    print(f"Color changed: {hex_color}")

root = customtkinter.CTk()
picker = CTkColorPicker(root, command=on_color_change)
picker.pack(padx=20, pady=20)

root.mainloop()

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Project Structure

ctk_colorpicker_plus/
    __init__.py
    ctk_color_picker.py          # Modal dialog
    ctk_color_picker_widget.py   # Embeddable widget
    color_utils.py               # Shared color math and helpers
    color_wheel.png
    target.png
examples/
    demo.py

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Requirements

• Python 3.8+
• CustomTkinter
• Pillow

Install dependencies:

pip install customtkinter Pillow

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License

This project is released under the MIT License.

Attribution: Based on CTkColorPicker by Akash Bora (Akasacape), originally released under CC0.

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Credits

• Original Author: Akash Bora (Akascape) - GitHub
• Maintainer: Phil Rice - GitHub
• Contributors: Victor Vimbert-Guerlais and the open source community