diff --git a/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorField.cpp b/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorField.cpp
index 93aae006c5..7ddbde7de5 100644
--- a/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorField.cpp
+++ b/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorField.cpp
@@ -315,7 +315,8 @@ ColorField::SetModeAndValue(selected_color_mode mode, float fixed_value)
 		R *= 255.0; G *= 255.0; B *= 255.0;
 	}
 	
-	rgb_color color = { round(R), round(G), round(B), 255 };
+	rgb_color color = { (uint8)round(R), (uint8)round(G), (uint8)round(B),
+		255 };
 
 	fBgBitmap[0]->Unlock();
 
diff --git a/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorPickerView.cpp b/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorPickerView.cpp
index 4633d2e36c..d4c7b4558b 100644
--- a/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorPickerView.cpp
+++ b/src/apps/icon-o-matic/generic/gui/panel/color_picker/ColorPickerView.cpp
@@ -82,7 +82,8 @@ ColorPickerView::layout(BRect frame)
 void
 ColorPickerView::AttachedToWindow()
 {
-	rgb_color	color = { (int)(r * 255), (int)(g * 255), (int)(b * 255), 255 };
+	rgb_color color = { (uint8)(r * 255), (uint8)(g * 255), (uint8)(b * 255),
+		255 };
 
 	BView::AttachedToWindow();
 
@@ -266,7 +267,8 @@ ColorPickerView::MessageReceived(BMessage *message)
 				HSV_to_RGB(h, s, v, r, g, b);
 			}
 
-			rgb_color color = { round(r*255), round(g*255), round(b*255), 255 };
+			rgb_color color = { (uint8)round(r * 255), (uint8)round(g * 255),
+				(uint8)round(b * 255), 255 };
 
 			SetColor(color);
 			
@@ -275,7 +277,8 @@ ColorPickerView::MessageReceived(BMessage *message)
 		case MSG_HEXTEXTCONTROL: {
 			if (fHexTextControl->TextView()->TextLength()==6) {
 				const char *string = fHexTextControl->TextView()->Text();
-				rgb_color color = { hexdec(string, 0), hexdec(string, 2), hexdec(string, 4), 255 };
+				rgb_color color = { (uint8)hexdec(string, 0), (uint8)hexdec(string, 2),
+					(uint8)hexdec(string, 4), 255 };
 				SetColor(color);
 			}
 		} break;
@@ -449,7 +452,8 @@ ColorPickerView::_UpdateColor(float value, float value1, float value2)
 	else
 		HSV_to_RGB(h, s, v, r, g, b);
 
-	rgb_color color = { (int)(r*255), (int)(g*255), (int)(b*255), 255 };
+	rgb_color color = { (uint8)round(r * 255), (uint8)round(g*255),
+		(uint8)round(b * 255), 255 };
 	fColorPreview->SetColor(color);
 }