diff --git a/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj b/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj
index 6cd12b4..6763354 100644
--- a/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj
+++ b/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj
@@ -59,6 +59,7 @@
     <Compile Include="SettingsTests.cs" />
     <Compile Include="Solids\CubeTests.cs" />
     <Compile Include="Solids\CylinderTests.cs" />
+    <Compile Include="Transforms\ColorTests.cs" />
     <Compile Include="Transforms\HullTests.cs" />
     <Compile Include="InterpolationTests.cs" />
     <Compile Include="Transforms\MirrorTests.cs" />
diff --git a/OSCADSharp/OSCADSharp.UnitTests/Transforms/ColorTests.cs b/OSCADSharp/OSCADSharp.UnitTests/Transforms/ColorTests.cs
new file mode 100644
index 0000000..3151a7a
--- /dev/null
+++ b/OSCADSharp/OSCADSharp.UnitTests/Transforms/ColorTests.cs
@@ -0,0 +1,31 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using OSCADSharp.Scripting;
+using OSCADSharp.Solids;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OSCADSharp.UnitTests.Transforms
+{
+    [TestClass]
+    public class ColorTests
+    {
+        [TestMethod]
+        public void Color_BoundFieldsAppearInOutput()
+        {
+            Variable colorVar = new Variable("myFavoriteColor", "blue");
+            Variable cubeOpacity = new Variable("cubeOpacity", .6);
+
+            var obj = new Cube().Color("Red", .5);
+            obj.Bind("color", colorVar);
+            obj.Bind("opacity", cubeOpacity);
+
+            string script = obj.ToString();
+
+            Assert.IsTrue(script.Contains("myFavoriteColor"));
+            Assert.IsTrue(script.Contains("cubeOpacity"));
+        }
+    }
+}
diff --git a/OSCADSharp/OSCADSharp/Transforms/ColoredObject.cs b/OSCADSharp/OSCADSharp/Transforms/ColoredObject.cs
index 4bdf5aa..017905c 100644
--- a/OSCADSharp/OSCADSharp/Transforms/ColoredObject.cs
+++ b/OSCADSharp/OSCADSharp/Transforms/ColoredObject.cs
@@ -32,7 +32,12 @@ namespace OSCADSharp.Transforms
 
         public override string ToString()
         {
-            string colorCommand = String.Format("color(\"{0}\", {1})", this.ColorName, this.Opacity);
+            string colorName = this.bindings.Contains("color") ? this.bindings.Get("color").BoundVariable.Name :
+                this.ColorName;
+            string opacity = this.bindings.Contains("opacity") ? this.bindings.Get("opacity").BoundVariable.Name
+                : this.Opacity.ToString();
+
+            string colorCommand = String.Format("color(\"{0}\", {1})", colorName, opacity);
             var formatter = new SingleBlockFormatter(colorCommand, this.obj.ToString());            
             return formatter.ToString();
         }
@@ -55,9 +60,13 @@ namespace OSCADSharp.Transforms
             return this.obj.Bounds();
         }
 
+        private Bindings.Bindings bindings = new Bindings.Bindings(new Dictionary<string, string>() {
+            {"color", "color" },
+            {"opacity", "opacity" }
+        });
         public override void Bind(string property, Variable variable)
         {
-            throw new NotImplementedException();
+            this.bindings.Add<ColoredObject>(this, property, variable);
         }
     }
 }