It looks to me like it me because, against advice, opigno requires drupal/color version 2.x-dev https://git.drupalcode.org/project/opigno_lms/-/blob/3.x/composer.json?r...
drupal/color has been updated to require drupal/core 10.1.3 or higher https://git.drupalcode.org/project/color/-/commit/abe0d3876d3b80a947173b...
Probably easiest to wait for the opigno 3.3 drop as the opigno maintainers don't seem to do much here.