How to set up Black color model with Graphic3d_MaterialAspect?

I have been playing around with Ambient, Diffuse, Specular and Emissive color... Whatever I set up I just can not have pure Black color.
Why I get Blue color If I set everything to 0.0?
Same If I turn all lights off.
Same If I have Graphic3d_MATERIAL_ASPECT

        Handle(myDataSource) aDS = new myDataSource();
        //create mesh
        Handle(MeshVS_Mesh) aMesh = new MeshVS_Mesh();
        aMesh->SetDataSource(aDS);

        //use builder
        Handle(MeshVS_MeshPrsBuilder) aBuilder = new MeshVS_MeshPrsBuilder(aMesh);
        Handle(MeshVS_Drawer) myCurrentDrawer = aMesh->GetDrawer();
        
        Graphic3d_MaterialAspect anAspects;

        anAspects.SetAmbientColor(Quantity_Color(0.0, 0.0, 0.0, Quantity_TOC_RGB));
        anAspects.SetDiffuseColor(Quantity_Color(0.0, 0.0, 0.0, Quantity_TOC_RGB));
        anAspects.SetSpecularColor(Quantity_Color(0.0, 0.0, 0.0, Quantity_TOC_RGB));
        anAspects.SetEmissiveColor(Quantity_Color(0.0, 0.0, 0.0, Quantity_TOC_RGB));

        /*
        // anAspects.SetAmbientColor(Quantity_Color(0.180000, 0.060000, 0.060000, Quantity_TOC_RGB));
        // anAspects.SetDiffuseColor(Quantity_Color(0.878431, 0.560784, 0.341176, Quantity_TOC_RGB));
        // anAspects.SetSpecularColor(Quantity_Color(0.0720000, 0.0720000, 0.0720000, Quantity_TOC_RGB));
        // anAspects.SetEmissiveColor(Quantity_Color(0.320000, 0.320000, 0.320000, Quantity_TOC_RGB));
        */

        anAspects.SetMaterialType(Graphic3d_MATERIAL_PHYSIC);
        anAspects.SetShininess(0.10);
        anAspects.ReflectionMode(Graphic3d_TOR_SPECULAR);
        myCurrentDrawer->SetMaterial(MeshVS_DA_FrontMaterial, anAspects);
        //myCurrentDrawer->SetMaterial(MeshVS_DA_BackMaterial, anAspects);

        aMesh->SetDisplayMode(MeshVS_DMF_Shading);
        aMesh->GetDrawer()->SetBoolean(MeshVS_DA_InteriorColor, Standard_False); //MeshVS_DrawerAttribute
        aMesh->GetDrawer()->SetBoolean(MeshVS_DA_Reflection, Standard_True); //MeshVS_DrawerAttribute
        aMesh->GetDrawer()->SetBoolean(MeshVS_DA_SmoothShading, Standard_True); //MeshVS_DrawerAttribute
        aMesh->GetDrawer()->SetBoolean(MeshVS_DA_ShowEdges, Standard_False);
        aMesh->GetDrawer()->SetBoolean(MeshVS_DA_DisplayNodes, Standard_False);

        aMesh->SetDrawer(myCurrentDrawer);
        aMesh->AddBuilder(aBuilder, Standard_True);
        myAISContext->SetDisplayMode(aMesh, MeshVS_DMF_Shading, Standard_False);
        myAISContext->Display(aMesh, Standard_True);
        Fit();