Info buttons lack contrast

{{html}}
<!-- Standard button -->
<button type="button" class="btn btn-default">Default</button><!-- Provides extra visual weight and identifies the primary action in a set of buttons -->
<button type="button" class="btn btn-primary">Primary</button><!-- Indicates a successful or positive action -->
<button type="button" class="btn btn-success">Success</button><!-- Contextual button for informational alert messages -->
<button type="button" class="btn btn-info">Info</button><!-- Indicates caution should be taken with this action -->
<button type="button" class="btn btn-warning">Warning</button><!-- Indicates a dangerous or potentially negative action -->
<button type="button" class="btn btn-danger">Danger</button><!-- Deemphasize a button by making it look like a link while maintaining button behavior -->
<button type="button" class="btn btn-link">Link</button>
{{/html}}