Popsu-coloque/web/themes/custom/popsu_colloque/css/typography.scss

main{
  h2, a{
    color: $color2;
  }

  .blue, #txt_present{
    color: $color2;
  }

  #block-views-block-slide-programme-block-1{
    .thumbnails a{
      color: $col_black;
    }
  }
}