IronXL How-Tos Background Pattern & Color How to Set Cell Background Pattern & Color Chaknith Bin Updated:July 28, 2025 In Excel, a background cell pattern refers to the visual design or fill applied to a cell's background. Additionally, background cell color refers to the solid color applied to a cell's background. By combining both features, users can create visually appealing cell backgrounds with a wide range of pattern styles, colors, and textures. With IronXL, you can leverage these features to customize cell backgrounds in Excel, enhancing data visualization and highlighting important information in your spreadsheets. How to Set Cell Background Pattern & Color Download the C# library to set background pattern and color Open an existing or create a new Excel spreadsheet Set the FillPattern property of the cell, column, row, or range to define the fill pattern Use the SetBackgroundColor method to set the color Export all available fill patterns Get started with IronXL Start using IronXL in your project today with a free trial. First Step: Start for Free Set Cell Background Pattern & Color Example To set a background pattern for a selected cell, column, row, or range, use the FillPattern property with one of the enums from IronXL.Styles.FillPattern. Then, utilize the SetBackgroundColor method or set the BackgroundColor property to apply the desired color. You can choose the color from the Color class or input the Hex color code. For example, SeaGreen is "#FFF5EE". Please noteit is currently not possible to change the color of the fill pattern. :path=/static-assets/excel/content-code-examples/how-to/background-pattern-color-set-background-pattern-color.cs using IronXL; using IronXL.Styles; using IronSoftware.Drawing; WorkBook workBook = WorkBook.Create(); WorkSheet workSheet = workBook.DefaultWorkSheet; // Set background pattern workSheet["A1"].Style.FillPattern = FillPattern.AltBars; workSheet["A2"].Style.FillPattern = FillPattern.ThickVerticalBands; // Set background color workSheet["A1"].Style.SetBackgroundColor(Color.Aquamarine); workSheet["A2"].Style.BackgroundColor = "#ADFF2F"; workBook.SaveAs("setBackgroundPattern.xlsx"); Imports IronXL Imports IronXL.Styles Imports IronSoftware.Drawing Private workBook As WorkBook = WorkBook.Create() Private workSheet As WorkSheet = workBook.DefaultWorkSheet ' Set background pattern Private workSheet("A1").Style.FillPattern = FillPattern.AltBars Private workSheet("A2").Style.FillPattern = FillPattern.ThickVerticalBands ' Set background color workSheet("A1").Style.SetBackgroundColor(Color.Aquamarine) workSheet("A2").Style.BackgroundColor = "#ADFF2F" workBook.SaveAs("setBackgroundPattern.xlsx") $vbLabelText $csharpLabel Available Fill Patterns Utilize the available fill patterns from the IronXL.Styles.FillPattern enum to set the desired fill pattern in your Excel sheets. Below is an illustration showcasing all the available fill patterns offered by IronXL: Frequently Asked Questions How can I set a cell background pattern in Excel using C#? To set a cell background pattern in Excel using C#, use the FillPattern property of the cell, column, row, or range with one of the enums from IronXL.Styles.FillPattern. What is the method to apply a solid background color to a cell in C#? You can apply a solid background color to a cell by using the SetBackgroundColor method or setting the BackgroundColor property in IronXL. Can I use custom color codes for cell backgrounds in C#? Yes, you can use Hex color codes or select from predefined colors in the Color class to set background colors in IronXL. Is it possible to export available fill patterns in Excel using C#? Yes, you can export all available fill patterns in Excel using C# by utilizing the IronXL.Styles.FillPattern enum to explore and apply various fill patterns. How do I begin customizing Excel sheets with a C# library? To begin customizing Excel sheets, download the IronXL C# library from NuGet, open an existing or create a new Excel spreadsheet, and use the library's methods to customize cell appearances. What namespaces are required to manage colors and patterns in IronXL? You need to import the IronXL, IronXL.Styles, and System.Drawing namespaces to manage colors and patterns in IronXL. Can I change the fill pattern color itself in a C# library? Currently, it is not possible to change the color of the fill pattern itself in IronXL. What are the different fill patterns available for Excel customization using C#? IronXL provides a variety of fill patterns accessible through the IronXL.Styles.FillPattern enum, enabling diverse customization options for cell appearances in Excel. Chaknith Bin Chat with engineering team now Software Engineer Chaknith works on IronXL and IronBarcode. He has deep expertise in C# and .NET, helping improve the software and support customers. His insights from user interactions contribute to better products, documentation, and overall experience. Ready to Get Started? Free NuGet Download Total downloads: 1,558,208 View Licenses