How to Set Button Border Color in Tkinter Python

In Tkinter, the Button widget does not have a direct option to set the border color. However, you can achieve this effect by placing the Button inside a Frame with a specified background color, effectively creating a border.

To set a border color for a button in Tkinter, follow these steps:

Create a Frame widget with the desired border color.
Set the Frame’s background color to match the desired border color.
Place the Button inside the Frame with proper padding.

In this tutorial, we will explore different ways to set a border color for a Tkinter Button using the Frame widget.

Examples

1. Setting a Red Border Around a Button

In this example, we create a Button inside a Frame with a red border.

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import tkinter as tk

root = tk.Tk()
root.title("Button Border Color Example - tutorialkart.com")
root.geometry("400x200")

# Create a Frame to act as a border
frame = tk.Frame(root, bg="red", padx=3, pady=3)
frame.pack(pady=20)

# Create a Button inside the Frame
button = tk.Button(frame, text="Click Me", bg="white")
button.pack()

root.mainloop()

Output:

A button with a red border is displayed.

2. Setting a Blue Border Around a Button

This example sets a blue border around the Button.

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import tkinter as tk

root = tk.Tk()
root.title("Button Border Color Example - tutorialkart.com")
root.geometry("400x200")

# Create a Frame with a blue border
frame = tk.Frame(root, bg="blue", padx=4, pady=4)
frame.pack(pady=20)

# Create a Button inside the Frame
button = tk.Button(frame, text="Click Me", bg="white")
button.pack()

root.mainloop()

Output:

A button with a blue border is displayed.

3. Creating a Thick Green Border

We increase the padding in the Frame to create a thick green border.

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import tkinter as tk

root = tk.Tk()
root.title("Button Border Color Example - tutorialkart.com")
root.geometry("400x200")

# Create a Frame with a thick green border
frame = tk.Frame(root, bg="green", padx=10, pady=10)
frame.pack(pady=20)

# Create a Button inside the Frame
button = tk.Button(frame, text="Click Me", bg="white")
button.pack()

root.mainloop()

Output:

A button with a thick green border is displayed.

Conclusion

In this tutorial, we explored how to set a border color for Tkinter buttons using the Frame widget. The key takeaways include:

Placing the Button inside a Frame allows customization of the border color.
Using padx and pady increases the thickness of the border.
Setting a relief property can enhance the border effect.

By applying these techniques, you can create visually appealing buttons in your Tkinter application.

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How to Set Button Border Color in Tkinter Python