std::string sColor = "#ff8080ff" or "0xff8080ff"; // Erase '#' from it, if it's in 0x format, do nothing if(sColor.length() != 0 && sColor.at(0) == '#') sColor.erase(0,1); // RGBA byte order, this could be rgba or argb or bgra std::string byteOrder = "rgba"; unsigned long hexValue=0; // convert hex string to unsigned long, strtoul takes care of '0x' format hexValue = std::strtoul(sColor.c_str(),NULL,16); int n = byteOrder.length() - 1 ; orxCOLOR color; color.vRGB.fR = ((hexValue >> (n - byteOrder.find('r')) * 8) & 0xFF) / 255.0; // Extract the RR byte color.vRGB.fG = ((hexValue >> (n - byteOrder.find('g')) * 8) & 0xFF) / 255.0; // Extract the GG byte color.vRGB.fB = ((hexValue >> (n - byteOrder.find('b')) * 8) & 0xFF) / 255.0; // Extract the BB byte color.fAlpha = ((hexValue >> (n - byteOrder.find('a')) * 8) & 0xFF) / 255.0; // Extract the AA byte