diff --git a/Chameleon/UIColor+Chameleon.m b/Chameleon/UIColor+Chameleon.m
index 0e2c6c7..e323484 100644
--- a/Chameleon/UIColor+Chameleon.m
+++ b/Chameleon/UIColor+Chameleon.m
@@ -380,7 +380,7 @@ + (UIColor *)colorWithContrastingBlackOrWhiteColorOn:(UIColor *)backgroundColor
     
     //Calculate Luminance
     CGFloat luminance;
-    CGFloat red, green, blue, alpha;
+    CGFloat red = 0.0, green = 0.0, blue = 0.0, alpha = 0.0;
     
     //Check if color is transparent
     if (alpha == 0) {
@@ -423,7 +423,7 @@ + (UIColor *)colorWithContrastingBlackOrWhiteColorOn:(UIColor *)backgroundColor
     
     //Calculate Luminance
     CGFloat luminance;
-    CGFloat red, green, blue, alpha;
+    CGFloat red = 0.0, green = 0.0, blue = 0.0, alpha = 0.0;
     [backgroundColor getRed:&red green:&green blue:&blue alpha:&alpha];
     
     //Check if color is transparent
diff --git a/ChameleonDemo/ChameleonDemo.xcodeproj/project.xcworkspace/xcuserdata/ViccAlexander.xcuserdatad/UserInterfaceState.xcuserstate b/ChameleonDemo/ChameleonDemo.xcodeproj/project.xcworkspace/xcuserdata/ViccAlexander.xcuserdatad/UserInterfaceState.xcuserstate
index cf046bb..bdcf4ad 100644
Binary files a/ChameleonDemo/ChameleonDemo.xcodeproj/project.xcworkspace/xcuserdata/ViccAlexander.xcuserdatad/UserInterfaceState.xcuserstate and b/ChameleonDemo/ChameleonDemo.xcodeproj/project.xcworkspace/xcuserdata/ViccAlexander.xcuserdatad/UserInterfaceState.xcuserstate differ