diff --git a/Services/ReactionScannerService.cs b/Services/ReactionScannerService.cs
--- a/Services/ReactionScannerService.cs
+++ b/Services/ReactionScannerService.cs
@@ -367,13 +367,13 @@ namespace DesertPaintCodex.Services
             // WE FOUND THE SWATCH!
             // Now we know where the color bars are.
             _lockedSwatchWidth = true;
-            int redPixelCount = pixels.LengthOfColorAt(x, y + _redBarSpacing, PixelColor.IsRed);
+            int redPixelCount = pixels.LengthOfColorAt(x, y + _redBarSpacing, _swatchWidth, PixelColor.IsRed);
             reactedColor.Red = (byte)Math.Round(redPixelCount * 255f / _swatchWidth);
 
-            int greenPixelCount = pixels.LengthOfColorAt(x, y + _greenBarSpacing, PixelColor.IsGreen);
+            int greenPixelCount = pixels.LengthOfColorAt(x, y + _greenBarSpacing, _swatchWidth, PixelColor.IsGreen);
             reactedColor.Green = (byte)Math.Round(greenPixelCount * 255f / _swatchWidth);
 
-            int bluePixelCount = pixels.LengthOfColorAt(x, y + _blueBarSpacing, PixelColor.IsBlue);
+            int bluePixelCount = pixels.LengthOfColorAt(x, y + _blueBarSpacing, _swatchWidth, PixelColor.IsBlue);
             reactedColor.Blue = (byte)Math.Round(bluePixelCount * 255f / _swatchWidth);
             WriteLog(LogVerbosity.Low, "Found the color swatch at {0}, {1}. Color={2} Red={3}px Green={4}px Blue={5}px", x, y, reactedColor, redPixelCount, greenPixelCount, bluePixelCount);
             return true;
diff --git a/Util/PixelColor.cs b/Util/PixelColor.cs
--- a/Util/PixelColor.cs
+++ b/Util/PixelColor.cs
@@ -1,6 +1,5 @@
 using System;
 using System.Drawing;
-using DesertPaintCodex.Services;
 
 namespace DesertPaintCodex.Util
 {
@@ -27,15 +26,15 @@ namespace DesertPaintCodex.Util
 
         public static bool IsRed(Color color)
         {
-            return (color.R > 0x9D) && (color.G < 0x60) && (color.B < 0x60);
+            return (color.R > 0x9D) && (color.G < 0x64) && (color.B < 0x64);
         }
         public static bool IsGreen(Color color)
         {
-            return (color.R < 0x60) && (color.G > 0x9D) && (color.B < 0x60);
+            return (color.R < 0x64) && (color.G > 0x9D) && (color.B < 0x64);
         }
         public static bool IsBlue(Color color)
         {
-            return (color.R < 0x60) && (color.G < 0x60) && (color.B > 0x9D);
+            return (color.R < 0x64) && (color.G < 0x64) && (color.B > 0x9D);
         }
 
     }
diff --git a/Util/Pixels.cs b/Util/Pixels.cs
--- a/Util/Pixels.cs
+++ b/Util/Pixels.cs
@@ -37,12 +37,16 @@ namespace DesertPaintCodex.Util
         }
 
         // Compute length of horizontal bar starting at x,y using matching function
-        public int LengthOfColorAt(int x, int y, Func<Color, bool> matchFunc)
+        public int LengthOfColorAt(int x, int y, int scanWidth, Func<Color, bool> matchFunc)
         {
             int count = 0;
-            for (int xVal = x; xVal < Width; ++xVal)
+            for (int xVal = x; xVal < scanWidth + x; ++xVal)
             {
-                if (!matchFunc(_bitmap.GetPixel(xVal * _pixelMultiplier, y * _pixelMultiplier))) break;
+                Color c = _bitmap.GetPixel(xVal * _pixelMultiplier, y * _pixelMultiplier);
+                if (!matchFunc(c))
+                {
+                    break;
+                }
                 ++count;
             }
             return count;