Brand assets are both tangible and intangible tools that you would use to connect with your audience. It ranges from small elements to large collaterals. It consists of many other sub-asset categories such as marketing assets, creative assets, graphic assets, and so on.
Examples of brand assets: logo, name, tagline, colour, identity, trademarks, packaging, mascot, brochures, website, videos, images, content, signages, uniforms, sales kits, music, ads, campaign visuals and messages.
Essentially, anything that you would use to communicate your brand to your customers is considered a brand asset. It is referred to as an asset because it increases your perceived value, equity, and supports revenue generation.