The dartboard in a dream, shows the protection you are feeling from someone. Make sure you show your emotions in more understood language to others. On the other hand the dartboard may symbolize the tasks you wish to achieve. Make sure you always move forward instead of staying at one place.
Dream dictionary: Dartboard dream meanings
If color white is untainted in our dreams, it signifies the trust which hasnt been betrayed. If white objects appear filthy, we will be subject of betrayals. If it is about a dartboard, it portends success in your projects.