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Choose color Dialog in Tkinter

The tkinter.colorchooser module provides a dialog window to let the user choose a color. In this tutorial, we'll see how to use this dialog to choose a color and then apply that color to a tkinter widget.

Choose Color Dialog in tkinter Tutorial:

1. Import Required Libraries:

import tkinter as tk
from tkinter import colorchooser

2. Function to Trigger the Color Dialog:

To open the color dialog and get the color, you can use the askcolor() function provided by colorchooser. This function will return a tuple where the first item is a tuple representing the RGB values of the selected color and the second item is the color in the string format.

Here's how you can open the color chooser and get the selected color:

def choose_color():
    color = colorchooser.askcolor(title ="Choose a color")
    if color[1]:
        label.config(bg=color[1])

3. Create the Main Application Window and Widgets:

root = tk.Tk()
root.title("Color Chooser Tutorial")

label = tk.Label(root, text="Color me!", width=30, height=10)
label.pack(pady=20)

btn = tk.Button(root, text="Choose Color", command=choose_color)
btn.pack(pady=20)

root.mainloop()

Complete Code:

import tkinter as tk
from tkinter import colorchooser

def choose_color():
    color = colorchooser.askcolor(title ="Choose a color")
    if color[1]:
        label.config(bg=color[1])

root = tk.Tk()
root.title("Color Chooser Tutorial")

label = tk.Label(root, text="Color me!", width=30, height=10)
label.pack(pady=20)

btn = tk.Button(root, text="Choose Color", command=choose_color)
btn.pack(pady=20)

root.mainloop()

In this code, when you run the program, you'll see a label with a "Choose Color" button below it. When you click the button, the color chooser dialog will appear. Once you select a color and click OK, the background of the label will change to the chosen color. If you cancel the dialog, no changes will be made.

  1. Python Tkinter color picker example:

    • Description: Tkinter provides a color picker dialog that allows users to select a color interactively.
    • Code:
      import tkinter as tk
      from tkinter import colorchooser
      
      def pick_color():
          color = colorchooser.askcolor(title="Choose a color")[1]
          print("Selected color:", color)
      
      root = tk.Tk()
      
      color_button = tk.Button(root, text="Pick a Color", command=pick_color)
      color_button.pack()
      
      root.mainloop()
      
  2. How to use the color chooser in Tkinter:

    • Description: Tkinter's colorchooser module provides a convenient way to integrate a color chooser dialog in your application.
    • Code:
      import tkinter as tk
      from tkinter import colorchooser
      
      def pick_color():
          color = colorchooser.askcolor(title="Choose a color")[1]
          print("Selected color:", color)
      
      root = tk.Tk()
      
      color_button = tk.Button(root, text="Pick a Color", command=pick_color)
      color_button.pack()
      
      root.mainloop()
      
  3. Choosing colors for widgets in Tkinter:

    • Description: Colors selected with the color chooser can be applied to various Tkinter widgets, such as buttons, labels, etc.
    • Code:
      import tkinter as tk
      from tkinter import colorchooser
      
      def apply_color():
          color = colorchooser.askcolor(title="Choose a color")[1]
          label.config(text="Selected color: " + color)
          button.config(bg=color)
      
      root = tk.Tk()
      
      label = tk.Label(root, text="Selected color: ")
      label.pack()
      
      button = tk.Button(root, text="Apply Color", command=apply_color)
      button.pack()
      
      root.mainloop()
      
  4. Python Tkinter color dialog options:

    • Description: The askcolor function in Tkinter's colorchooser module has options for configuring the color picker dialog, such as the initial color.
    • Code:
      import tkinter as tk
      from tkinter import colorchooser
      
      def pick_color():
          initial_color = "#00ff00"  # Initial color in hexadecimal format (Green)
          color = colorchooser.askcolor(title="Choose a color", initialcolor=initial_color)[1]
          print("Selected color:", color)
      
      root = tk.Tk()
      
      color_button = tk.Button(root, text="Pick a Color", command=pick_color)
      color_button.pack()
      
      root.mainloop()
      
  5. Adding a color picker to Tkinter GUI:

    • Description: You can create a more comprehensive color picker interface by combining the color chooser with other Tkinter widgets.
    • Code:
      import tkinter as tk
      from tkinter import colorchooser
      
      def pick_color():
          color = colorchooser.askcolor(title="Choose a color")[1]
          color_label.config(bg=color)
      
      root = tk.Tk()
      
      color_label = tk.Label(root, text="Selected color", width=20, height=2)
      color_button = tk.Button(root, text="Pick a Color", command=pick_color)
      
      color_label.pack(pady=10)
      color_button.pack()
      
      root.mainloop()