ASP.NET Core ColorPicker Overview

The ColorPicker is part of Telerik UI for ASP.NET Core, a professional grade UI library with 110+ components for building modern and feature-rich applications. To try it out sign up for a free 30-day trial.

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The Telerik UI ColorPicker TagHelper and HtmlHelper for ASP.NET Core are server-side wrappers for the Kendo UI ColorPicker widget.

The ColorPicker is a drop-down list for selecting colors.

• Demo page for the ColorPicker HtmlHelper

• Demo page for the ColorPicker TagHelper

Initializing the ColorPicker

The following example demonstrates how to define the ColorPicker.

    @(Html.Kendo().ColorPicker()
          .Name("colorpicker") // The name of the ColorPicker is mandatory. It specifies the "id" attribute of the widget.
          .Value("#ff0000") // Set the value of the ColorPicker.
    )

        <kendo-colorpicker name="colorpicker" value="#ff0000">
            <messages apply="Change" cancel="Close" />
        </kendo-colorpicker>

Starting with the 2024 Q3 release, the HtmlHelper version of the component supports declarative initialization.

Basic Configuration

The following example demonstrates how to configure the tile size, columns, Change event, and palette colors.

        @(Html.Kendo().ColorPalette()
            .Name("palette")
            .Columns(4)
            .TileSize(s => s.Width(34).Height(19))
            .Palette(new string[] {
                "#f0d0c9", "#e2a293", "#d4735e", "#65281a",
                "#eddfda", "#dcc0b6", "#cba092", "#7b4b3a",
                "#fcecd5", "#f9d9ab", "#f6c781", "#c87d0e",
                "#e1dca5", "#d0c974", "#a29a36", "#514d1b",
                "#c6d9f0", "#8db3e2", "#548dd4", "#17365d"
            })
            .Events(events => events.Change("preview"))
        )

        @{
            string[] colorPickerPalette = new string[] {
                                        "#f0d0c9", "#e2a293", "#d4735e", "#65281a",
                                        "#eddfda", "#dcc0b6", "#cba092", "#7b4b3a",
                                        "#fcecd5", "#f9d9ab", "#f6c781", "#c87d0e",
                                        "#e1dca5", "#d0c974", "#a29a36", "#514d1b",
                                        "#c6d9f0", "#8db3e2", "#548dd4", "#17365d"
                                    };
        }
        <kendo-colorpalette name="palette" columns="4" on-change="preview" palette-colors="colorPickerPalette">
            <tile-size height="19" width="34" />
        </kendo-colorpalette>

Functionality and Features

• Views—The ColorPicker enables you to choose between gradient or palette view types.
• Appearance—The ColorPicker provides you with the option to customize its appearance based on your requirements.
• Contrast Tool—The ColorPicker enables you to configure the contrast tool.
• Formats—The ColorPicker provides support for both HEX and RGB coloring formats.

Next Steps

• Getting Started with the ColorPicker

• Basic Usage of the ColorPicker HtmlHelper for ASP.NET Core (Demo)

• Basic Usage of the ColorPicker TagHelper for ASP.NET Core (Demo)

• ColorPicker in Razor Pages

See Also

• Using the API of the ColorPicker for ASP.NET Core (Demo)
• Knowledge Base Section