Organisers said the designs are based on the "look" of the Games and the "visual identity" of Tokyo 2020.

There are 59 designs for Olympic tickets and 25 for the Paralympics, with those who have secured seats set to receive them from May.

All of the tickets feature a sport pictogram, a venue pictogram and the Tokyo 2020 logo.

They are colour-coded according to the venue and area hosting the event.

According to Tokyo 2020, the tickets have been inspired by the three types of rectangle used in the Games emblems.

Inspiration has also been taken from the Japanese technique "kasane no irome", a colour scheme used in the creation of fabrics for kimonos. 

Four "traditional Japanese" colours have been used which are said to reflect the four seasons.

Red, or kurenai, is often used during celebrations while blue, or ai, has been picked as it is "globally known" as a colour representing Japan.

Blue is also the prominent colour of the Tokyo 2020 logos.

Purple, or fuji, is the colour of Japanese wisteria, regarded as a "beautiful Japanese flower".

A pine needle shade of green, or matsuba, is another colour which is used in celebrations.

"We are very proud of the design of the Tokyo 2020 tickets, embodying as it does Japanese traditions and skills, and we hope they will please both Japanese and international spectators at the Tokyo 2020 Games," said Tokyo 2020 spokesperson Masa Takaya. 

"These tickets will not just be the door-opener to the venues for them, they will become memorabilia that they will cherish long after the Games come to an end."  

A free exhibition of the tickets opened in Tokyo today at Nihonbashi Mitsui Tower.

It will run until January 29.  

Organisers have reported huge demand for tickets in Japan, with lotteries for those in the host nation taking place.