I created my own solarized theme colors for my blog with markdown code snippets. This is used to list all colors used by css class and lang, so I can adjust the colors used.

markdown-code-highlighter-logger.js

Array.prototype.uniq = function(){ return $.unique(this.sort()); };
log = (msg, bg, c)=> console.log('%c'+msg, 'background: '+bg+'; color: '+c);
classes = $('.highlighter-rouge pre code span').map((_,x)=> $(x).attr('class')).toArray().uniq();
languages = $('.highlighter-rouge .header').map((_,x)=> $(x).data('lang')).toArray().uniq();
classes.forEach(function(css){
  log('=> '+css+'   ','#eee8d5','#268bd2');
  languages.forEach(function(lang){
    log('     '+lang+'   ', '#eee8d5','#2aa198');
    nodes = $('.highlighter-rouge.language-'+lang+' pre code span.'+css);
    texts = nodes.map((_,x)=> $(x).text()).toArray().uniq();
    texts.forEach(function(text){ log('   '+text+'   ', '#073642', nodes.css('color')); });
  });
});