DSC-2715 Updated color

(cherry picked from commit ec1f362d24b87219bbf0e468b915ffac9efeadf0)

Author: Mattia Vianelli

src/app/submission/submission-legend/submission-legend.component.scss

@@ -10,5 +10,5 @@ p {
   border-radius: 0.25rem;
   background-color: rgba(0, 0, 0, 0.03);
   font-size: 0.875rem;
-  color: #212529;
+  color: #343a40;
 }