Red and Blue Singlets are required, here is the UWW Singlet Guideline.

https://cdn.uww.org/2023-12/uniform_guidelines_2017.pdf

2.3 Colours To avoid countries from wearing the same colours two uniform options are required.

2.3.1 Colour Base All countries shall select their uniform which is based on their country colours. The design is determined by the colours present in the country’s flag. Alternatives may be considered on an exceptional case basis with the approval of United World Wrestling. The country colour selected shall make up 70% of the singlet. One uniform with blue markings and one uniform with red markings must be submitted to United World Wrestling for approval. Each of these uniforms has restricting colours that must be used with each of the singlets, that incorporate the red or blue markings (see below). In addition to the country colours, red and blue markings will remain on the singlet to determine the scoring between the athletes.

To avoid similar colour combinations, countries should endeavour to use the following colours with blue markings • Black, Blue, Green, Grey, Purple, Silver

To avoid similar colour combinations, countries should endeavour to use the following colours with red markings • White, Orange, Pink, Red, Yellow, Brown, Gold UWW may require that the above rules are actually enforced in case the colour combinations do not allow a clear identification of the blue or red markings. For example, a singlet with a majority of blue will be refused when used with red markings. Or a singlet with a majority of red will be refused if used with blue markings. 

2.4 Markings

2.4.1 Red and Blue Markings Each Singlet will have a total of three markings consisting of: • Two 7cm bands, one on each leg, shall be positioned across the bottom edge of the leg. For clear distinction the marking shall cover the circumference of the leg. • One 7 cm band positioned below athlete’s name and NOC code on the backside of the upper torso. The band should be exclusively placed on the back half of the singlet, not visible on the front half.

Important: The red and blue markings are uninterrupted sport-specific design components which must remain untouched from any graphic, logo or third party identification. The marking has to be placed below the athlete’s name and country code. The red markings shall be: Pantone 2347C and the blue markings shall be: Pantone 299