PyQt5 QColorDialog – Setting background color to its QWidget child

In this article we will see how we can set background color to the QColorDialog’s QWidget i.e its child QWidget. QColorDialog is the pop up type widget in the PyQt5 used for selecting and creating colors. Color dialog is a huge widget that consists of lots of child widgets so it become tough to set stylesheet to the color dialog as it is a complex widget, below is how the background color to the QColorDialog widget’s QWidget looks like

In order to do this we have to set the stylesheet to the QColorDialog obect with the help of setStyleSheet method, below is the style sheet code

QColorDialog QWidget
{
background-color : lightgreen;
}

Below is the implementation

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code

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
  
    # method for components
    def UiComponents(self):
  
        # creating a QColorDialog object
        dialog = QColorDialog(self)
  
        # setting custom colors
        dialog.setCustomColor(1, Qt.red)
        dialog.setCustomColor(2, Qt.green)
        dialog.setCustomColor(3, Qt.yellow)
        dialog.setCustomColor(4, Qt.blue)
  
        # creating label
        label = QLabel("Geeks for Geeks", self)
  
        label.setAlignment(Qt.AlignCenter)
  
        # making label multi line
        label.setWordWrap(True)
  
        # setting stylesheet of the label
        label.setStyleSheet("QLabel"
                            "{"
                            "border : 5px solid black;"
                            "}")
  
  
        # getting the custom color
        color = dialog.customColor(4)
  
        # setting graphic effect to the label
        graphic = QGraphicsColorizeEffect(self)
  
        # setting color to the graphic
        graphic.setColor(color)
  
        # setting graphic to the label
        label.setGraphicsEffect(graphic)
  
        # adding label to the color dialog
        layout = dialog.layout()
        layout.addWidget(label)
        dialog.setLayout(layout)
  
        # setting style sheet to the color dialog's QWidget
        # adding background color
        dialog.setStyleSheet("QColorDialog QWidget"
                             "{"
                             "background-color : lightgreen;"
                             "}")
  
        print(dialog.children())
  
        # executing the color dialog
        dialog.exec_()
  
        # deleting the main window
        self.deleteLater()
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

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