Bright Tertiaries is a broad aesthetic, graphic design style and interior design style originating in the Mid- 2000s alongside contemporary and visually similar aesthetics such as Frutiger Aero , Vectordelia , and Four Colors . It was used for several purposes (mostly by corporations ), being incredibly popular during its era . It was utilized for interior décor, architecture, graphic design, clothing, consumer electronics, and media. Bright Tertiaries is primarily centered around a tertiary color palette (lime green, purple, orange, and teal), though a common variant uses a mix of tertiaries and primaries (fuchsia, cyan/teal, lime green, but usually no orange). It began to fall out of mainstream use in the mid 2010s , design trends experiencing a major shift from Frutiger-esque maximalist designs to Minimalistic philosophies such as Flat Design .

Bright Tertiaries ' earliest stylistic roots can be traced back to Memphis Design in the 1980s , both aesthetics making use of blocks of contrasting color.

Bright Tertiaries emerged in the Late- 2000s during the period when the Frutiger Family of aesthetics were emerging into the mainstream and '90s aesthetics such as Y2K Futurism were in decline. It was in response to the "anything goes" philosophy of Late-1990s/Early-2000s aesthetics, opting for a more refined, "humanistic" look. Bright Tertiaries was utilized in a variety of ways such as interior décor, architecture, graphic design, clothing, consumer electronics, and media; interior décor and architecture in particular were very prominent, a large portion of these being within educational grounds such as schools or colleges. Due to its sheer abundance and variety, Bright Tertiaries is almost synonymous with the zeitgeist of the 2000s, being a part of what most consider nostalgic about the decade.

During its prime, Bright Tertiaries was almost omnipresent in most aspects of everyday life, similar to Frutiger Aero and adjacent aesthetics. Bright Tertiaries experienced an increase in use in media such as video games and movies, as well as variants of consumer electronics; these color variants overlap with Four Colors , a related aesthetic that has a similar (but not identical) color scheme to Bright Tertiaries.

By the middle of the 2010s , the zeitgeist and overall optimism of the 2000s were fading. This manifested itself in prominent 2000s aesthetics such as Frutiger Aero , Vectordelia , and Four Colors falling out of mainstream popularity in favor of a more minimalistic era encapsulated by Flat Design , and later Corporate Memphis . By 2017, Flat Design was established completely.

Bright Tertiaries visuals follow the 2000s trend of incorporating colors that invoke feelings of nature, flourishes, naturist patterns, and a general consumer friendly "humanist" feel. This is very similar to aesthetics that were mainstream during the same time such as Frutiger Aero , Vectordelia , Four Colors , and Technozen ; these similarities often cause a lot of overlap between Bright Tertiaries and the previously mentioned aesthetics. Common motifs for Bright Tertiaries visuals include:

Interior décor most commonly utilizes flat blocks of color, a singular object usually only being one hue; this description can also be applied to the architecture. Occasionally, minimalist patterns similar to Flat Metro (a Vectordelia subgenre) will be employed.

Clothing that falls under Bright Tertiaries mostly use flowers and simple/childish patterns, black being a common background color. Due to this, clothing that falls under this aesthetic is usually intended for women or young girls/infants. These patterns share similarities with Vectordelia and Vectorgarden .

Consumer Electronics featuring Bright Tertiaries mostly overlap with Four Colors due to their shared color scheme and their tendency to use flat blocks of color. The color scheme is a little looser, employing colors outside the general tertiary color palette to a small extent.