Traditionally regarded as the colour of religion and asceticism, yellow is the colour of knowledge and learning. It symbolizes happiness, peace, meditation, competence, and mental development. It is the colour of spring and activates the mind. Lord Vishnu's dress is yellow symbolizing his representation of knowledge. Lord Krishna and Ganesha also wear yellow attire. The yellow colored turmeric powder is used to bathe the to-be bride, a ritual considered to purify her.
Introduce a cheery yellow in your home, perhaps as an accent colour in a bathroom or kitchen, and who knows? Perhaps it could be auspicious for you, too.