Different coloured idols are known to have different effects on your mind and body. Similarly, each shade Ganesha helps to identify the outcomes for your needs and boost the outcomes. As a result, standing one is best for offices. However, selecting the colour depends on the outcomes that you wish to attain.
Using turmeric shaded Ganesh idol is known to prevent any form of harm and negative impact. To attract people towards work and positive energy or actions then you need to have a red coloured Ganesha. Using a dark shade Ganesha is found to destroy negatively impact and hatred. You can choose the best one as per your requirement. For peace of mind, go for a white shade Ganesha idol.