diff --git a/GPU/GLES/TransformPipeline.cpp b/GPU/GLES/TransformPipeline.cpp
index 8510a14a91..ee95c08ab0 100644
--- a/GPU/GLES/TransformPipeline.cpp
+++ b/GPU/GLES/TransformPipeline.cpp
@@ -384,9 +384,9 @@ void TransformDrawEngine::SoftwareTransformAndDraw(
 					c1[j] = 0.0f;
 				}
 			} else {
-				c0[0] = ((gstate.materialambient >> 16) & 0xFF) / 255.f;
+				c0[0] = (gstate.materialambient & 0xFF) / 255.f;
 				c0[1] = ((gstate.materialambient >> 8)  & 0xFF) / 255.f;
-				c0[2] = (gstate.materialambient  & 0xFF) / 255.f;
+				c0[2] = ((gstate.materialambient >> 16) & 0xFF) / 255.f;
 				c0[3] = (gstate.materialalpha & 0xFF) / 255.f;
 			}
 
@@ -443,9 +443,9 @@ void TransformDrawEngine::SoftwareTransformAndDraw(
 			if (reader.hasColor0()) {
 				reader.ReadColor0(unlitColor);
 			} else {
-				unlitColor[0] = ((gstate.materialambient  >> 16) & 0xFF) / 255.f;
+				unlitColor[0] = (gstate.materialambient & 0xFF) / 255.f;
 				unlitColor[1] = ((gstate.materialambient >> 8)  & 0xFF) / 255.f;
-				unlitColor[2] = (gstate.materialambient & 0xFF) / 255.f;
+				unlitColor[2] = ((gstate.materialambient >> 16) & 0xFF) / 255.f;
 				unlitColor[3] = (gstate.materialalpha & 0xFF) / 255.f;
 			}
 			float litColor0[4];
@@ -474,8 +474,8 @@ void TransformDrawEngine::SoftwareTransformAndDraw(
 						c1[j] = 0.0f;
 					}
 				} else {
-					c0[0] = ((gstate.materialambient >> 16) & 0xFF) / 255.f;
-					c0[1] = ((gstate.materialambient >> 8)  & 0xFF) / 255.f;
+					c0[0] = ((gstate.materialambient >> 8) & 0xFF) / 255.f;
+					c0[1] = (gstate.materialambient & 0xFF) / 255.f;
 					c0[2] = (gstate.materialambient & 0xFF) / 255.f;
 					c0[3] = (gstate.materialalpha & 0xFF) / 255.f;
 				}
diff --git a/GPU/GLES/VertexShaderGenerator.cpp b/GPU/GLES/VertexShaderGenerator.cpp
index 5444be8489..e30608bdd2 100644
--- a/GPU/GLES/VertexShaderGenerator.cpp
+++ b/GPU/GLES/VertexShaderGenerator.cpp
@@ -338,7 +338,7 @@ void GenerateVertexShader(int prim, char *buffer) {
 			if (hasColor) {
 				WRITE(p, "  v_color0 = a_color0;\n");
 			} else {
-				WRITE(p, "  v_color0 = u_matambientalpha;\n");
+				WRITE(p, "  v_color0 += vec4(u_matambientalpha.rgb, 0.0);\n");
 			}
 			if (lmode)
 				WRITE(p, "  v_color1 = vec3(0.0, 0.0, 0.0);\n");