I have full confidence in you! Represents platonic love, faithfulness, loyalty and friendship. But also: support of the awareness of autism, love of water sports or expression of a fetish.
The blue heart emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the smileys and emotions
category. Because the blue heart emoji has been around for quite some time, it should display correctly in the majority of operating systems.