The most aesthetic option for orthodontic treatment is a completely invisible appliance – and that's what lingual braces are. In second place for aesthetics come clear aligners. They're made of a transparent material, and the reason they're more noticeable than lingual braces is the attachments or buttons on the front surfaces of the teeth. These are tooth-coloured, but because they stand out from the surface and have a different shape, they're slightly noticeable. After aligners come sapphire braces, followed by ceramic braces. The most noticeable part of treatment with these braces is the archwire. In aesthetic treatments a white archwire (a metal wire with a white Teflon coating) is sometimes used. White archwires are whiter than the teeth, which makes them noticeable, and after a few weeks in the mouth the white coating starts to wear off from brushing and food, so the wire looks greyish-white. Aesthetic braces can be used with clear elastic ties. Within a month, the clear silicone picks up colour from food and often turns yellow. At each check-up the archwires and elastic ties are replaced, which restores the aesthetics of this type of braces.
This answer is for general information. Your own case needs an examination by an orthodontist.