diff --git a/ptbposter/ptbposter.cls b/ptbposter/ptbposter.cls
index 2309ebbd9aae87f33f6a59b18dc92b566898932c..543139d85f3498cb827d53f39d817fa79965319f 100644
--- a/ptbposter/ptbposter.cls
+++ b/ptbposter/ptbposter.cls
@@ -236,7 +236,8 @@
 % icc:model: Europe ISO Coated FOGRA27
 \else
 %%%\definecolor{PTBcolor}{rgb}{0,0.67451,0.87451}
-  \definecolor{PTBcolor}{HTML}{00ACDF}
+  %%%\definecolor{PTBcolor}{HTML}{00ACDF}
+  \definecolor{PTBcolor}{RGB}{0,155,206}% 2019
 \fi
 
 \RequirePackage[texcoord]{eso-pic}