diff --git a/Source/Core/Common/ColorUtil.cpp b/Source/Core/Common/ColorUtil.cpp
index bce7276aa1..60d9b5b084 100644
--- a/Source/Core/Common/ColorUtil.cpp
+++ b/Source/Core/Common/ColorUtil.cpp
@@ -5,7 +5,7 @@
 #include "Common/ColorUtil.h"
 #include "Common/Swap.h"
 
-namespace ColorUtil
+namespace Common
 {
 static const int s_lut5to8[] = {0x00, 0x08, 0x10, 0x18, 0x20, 0x29, 0x31, 0x39, 0x41, 0x4A, 0x52,
                                 0x5A, 0x62, 0x6A, 0x73, 0x7B, 0x83, 0x8B, 0x94, 0x9C, 0xA4, 0xAC,
@@ -70,11 +70,10 @@ void decodeCI8image(u32* dst, const u8* src, const u16* pal, int width, int heig
         for (int ix = 0; ix < 8; ix++)
         {
           // huh, this seems wrong. CI8, not 5A3, no?
-          tdst[ix] = ColorUtil::Decode5A3(Common::swap16(pal[src[ix]]));
+          tdst[ix] = Decode5A3(Common::swap16(pal[src[ix]]));
         }
       }
     }
   }
 }
-
-}  // namespace
+}  // namespace Common
diff --git a/Source/Core/Common/ColorUtil.h b/Source/Core/Common/ColorUtil.h
index 1c90245a7b..14486a97d7 100644
--- a/Source/Core/Common/ColorUtil.h
+++ b/Source/Core/Common/ColorUtil.h
@@ -6,9 +6,8 @@
 
 #include "Common/CommonTypes.h"
 
-namespace ColorUtil
+namespace Common
 {
 void decode5A3image(u32* dst, const u16* src, int width, int height);
 void decodeCI8image(u32* dst, const u8* src, const u16* pal, int width, int height);
-
-}  // namespace
+}  // namespace Common
diff --git a/Source/Core/Core/HW/GCMemcard/GCMemcard.cpp b/Source/Core/Core/HW/GCMemcard/GCMemcard.cpp
index 26439a8811..d31126bac1 100644
--- a/Source/Core/Core/HW/GCMemcard/GCMemcard.cpp
+++ b/Source/Core/Core/HW/GCMemcard/GCMemcard.cpp
@@ -1082,13 +1082,13 @@ bool GCMemcard::ReadBannerRGBA8(u8 index, u32* buffer) const
     u8* pxdata = (u8*)(mc_data_blocks[DataBlock].block + DataOffset);
     u16* paldata = (u16*)(mc_data_blocks[DataBlock].block + DataOffset + pixels);
 
-    ColorUtil::decodeCI8image(buffer, pxdata, paldata, 96, 32);
+    Common::decodeCI8image(buffer, pxdata, paldata, 96, 32);
   }
   else
   {
     u16* pxdata = (u16*)(mc_data_blocks[DataBlock].block + DataOffset);
 
-    ColorUtil::decode5A3image(buffer, pxdata, 96, 32);
+    Common::decode5A3image(buffer, pxdata, 96, 32);
   }
   return true;
 }
@@ -1182,16 +1182,16 @@ u32 GCMemcard::ReadAnimRGBA8(u8 index, u32* buffer, u8* delays) const
       switch (fmts[i])
       {
       case CI8SHARED:  // CI8 with shared palette
-        ColorUtil::decodeCI8image(buffer, data[i], sharedPal, 32, 32);
+        Common::decodeCI8image(buffer, data[i], sharedPal, 32, 32);
         buffer += 32 * 32;
         break;
       case RGB5A3:  // RGB5A3
-        ColorUtil::decode5A3image(buffer, (u16*)(data[i]), 32, 32);
+        Common::decode5A3image(buffer, (u16*)(data[i]), 32, 32);
         buffer += 32 * 32;
         break;
       case CI8:  // CI8 with own palette
         const u16* paldata = reinterpret_cast<u16*>(data[i] + 32 * 32);
-        ColorUtil::decodeCI8image(buffer, data[i], paldata, 32, 32);
+        Common::decodeCI8image(buffer, data[i], paldata, 32, 32);
         buffer += 32 * 32;
         break;
       }
@@ -1208,15 +1208,15 @@ u32 GCMemcard::ReadAnimRGBA8(u8 index, u32* buffer, u8* delays) const
           switch (fmts[j])
           {
           case CI8SHARED:  // CI8 with shared palette
-            ColorUtil::decodeCI8image(buffer, data[j], sharedPal, 32, 32);
+            Common::decodeCI8image(buffer, data[j], sharedPal, 32, 32);
             break;
           case RGB5A3:  // RGB5A3
-            ColorUtil::decode5A3image(buffer, (u16*)(data[j]), 32, 32);
+            Common::decode5A3image(buffer, (u16*)(data[j]), 32, 32);
             buffer += 32 * 32;
             break;
           case CI8:  // CI8 with own palette
             const u16* paldata = reinterpret_cast<u16*>(data[j] + 32 * 32);
-            ColorUtil::decodeCI8image(buffer, data[j], paldata, 32, 32);
+            Common::decodeCI8image(buffer, data[j], paldata, 32, 32);
             buffer += 32 * 32;
             break;
           }
diff --git a/Source/Core/DiscIO/VolumeGC.cpp b/Source/Core/DiscIO/VolumeGC.cpp
index eda59fff08..51f9d0bb23 100644
--- a/Source/Core/DiscIO/VolumeGC.cpp
+++ b/Source/Core/DiscIO/VolumeGC.cpp
@@ -244,8 +244,8 @@ VolumeGC::ConvertedGCBanner VolumeGC::ExtractBannerInformation(const GCBanner& b
   banner.image_width = GC_BANNER_WIDTH;
   banner.image_height = GC_BANNER_HEIGHT;
   banner.image_buffer = std::vector<u32>(GC_BANNER_WIDTH * GC_BANNER_HEIGHT);
-  ColorUtil::decode5A3image(banner.image_buffer.data(), banner_file.image, GC_BANNER_WIDTH,
-                            GC_BANNER_HEIGHT);
+  Common::decode5A3image(banner.image_buffer.data(), banner_file.image, GC_BANNER_WIDTH,
+                         GC_BANNER_HEIGHT);
 
   for (u32 i = 0; i < number_of_languages; ++i)
   {
diff --git a/Source/Core/DiscIO/WiiSaveBanner.cpp b/Source/Core/DiscIO/WiiSaveBanner.cpp
index 5bfb87c273..5cd87e335c 100644
--- a/Source/Core/DiscIO/WiiSaveBanner.cpp
+++ b/Source/Core/DiscIO/WiiSaveBanner.cpp
@@ -69,7 +69,7 @@ std::vector<u32> WiiSaveBanner::GetBanner(u32* width, u32* height) const
     return std::vector<u32>();
 
   std::vector<u32> image_buffer(BANNER_WIDTH * BANNER_HEIGHT);
-  ColorUtil::decode5A3image(image_buffer.data(), banner_data.data(), BANNER_WIDTH, BANNER_HEIGHT);
+  Common::decode5A3image(image_buffer.data(), banner_data.data(), BANNER_WIDTH, BANNER_HEIGHT);
 
   *width = BANNER_WIDTH;
   *height = BANNER_HEIGHT;