Colored Dropcaps

Hello,

how can i give a dropcap a specific color? I shortcode generator there is only a specific form for css class. but what should i enter here, when the dropcap should display in #cc0000 ?

Best Regards
Tobias

https://wordpress.org/plugins/shortcodes-ultimate/