Index: Core/Common/src/Core.Common.Controls/Style/ColorDefinitions.cs
===================================================================
diff -u
--- Core/Common/src/Core.Common.Controls/Style/ColorDefinitions.cs	(revision 0)
+++ Core/Common/src/Core.Common.Controls/Style/ColorDefinitions.cs	(revision 87c8cb491a5e976625df04ec2e268786e878bdd9)
@@ -0,0 +1,56 @@
+// Copyright (C) Stichting Deltares 2021. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System.Drawing;
+
+namespace Core.Common.Controls.Style
+{
+    /// <summary>
+    /// Class with all color definitions that can be used in winforms controls.
+    /// </summary>
+    public static class ColorDefinitions
+    {
+        /// <summary>
+        /// Gets the background color for controls.
+        /// </summary>
+        public static Color ControlBackgroundColor { get; } = Color.FromArgb(241, 241, 238);
+
+        /// <summary>
+        /// Gets the button background color.
+        /// </summary>
+        public static Color ButtonBackgroundColor { get; } = Color.FromArgb(228, 228, 223);
+
+        /// <summary>
+        /// Gets the button border color.
+        /// </summary>
+        public static Color ButtonBorderColor { get; } = Color.FromArgb(210, 210, 202);
+
+        /// <summary>
+        /// Gets the front color for active buttons.
+        /// </summary>
+        public static Color ButtonActiveFrontColor { get; } = Color.FromArgb(0, 139, 191);
+
+        /// <summary>
+        /// Gets the front color for inactive buttons.
+        /// </summary>
+        public static Color ButtonInactiveFrontColor { get; } = Color.Black;
+    }
+}
\ No newline at end of file
Index: Core/Common/test/Core.Common.Controls.Test/Style/ColorDefinitionsTest.cs
===================================================================
diff -u
--- Core/Common/test/Core.Common.Controls.Test/Style/ColorDefinitionsTest.cs	(revision 0)
+++ Core/Common/test/Core.Common.Controls.Test/Style/ColorDefinitionsTest.cs	(revision 87c8cb491a5e976625df04ec2e268786e878bdd9)
@@ -0,0 +1,41 @@
+// Copyright (C) Stichting Deltares 2021. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System.Drawing;
+using Core.Common.Controls.Style;
+using NUnit.Framework;
+
+namespace Core.Common.Controls.Test.Style
+{
+    [TestFixture]
+    public class ColorDefinitionsTest
+    {
+        [Test]
+        public void Constants_Always_ExpectedValues()
+        {
+            Assert.AreEqual(Color.FromArgb(241, 241, 238), ColorDefinitions.ControlBackgroundColor);
+            Assert.AreEqual(Color.FromArgb(228, 228, 223), ColorDefinitions.ButtonBackgroundColor);
+            Assert.AreEqual(Color.FromArgb(210, 210, 202), ColorDefinitions.ButtonBorderColor);
+            Assert.AreEqual(Color.FromArgb(0, 139, 191), ColorDefinitions.ButtonActiveFrontColor);
+            Assert.AreEqual(Color.Black, ColorDefinitions.ButtonInactiveFrontColor);
+        }
+    }
+}
\ No newline at end of file