[16][17] Once established as a party, Amarillos reunited political figures from centre-left and centre-right ―like Mario Waissbluth[18] and Jaime Mañalich[19]―, which installed this organization as a big-tent party focused in the experience of the Concertación (coalition of the Chilean post-dictatorial period) (1988−2013).

The movement was born out of columns and letters that Warnken wrote in the radio station Pauta FM and in the newspaper El Mercurio.

In it, Warnken recounted an incident in Isla Negra where a group of young people yelled "amarillo" and "facho" at him.

[20] Warnken's column "Letter to all the yellow bases in the country" was published in Pauta on 6 February 2022, and served as the catalyst for the movement's founding.

[21] On 23 September 2022, Amarillos por Chile presented its founding manifesto as a political party, along with its provisional directive.