diff --git a/lib/Init.cc b/lib/Init.cc
index 873163d8..c1f1337c 100644
--- a/lib/Init.cc
+++ b/lib/Init.cc
@@ -237,25 +237,18 @@ void Grid_init(int *argc,char ***argv)
     std::cout<<GridLogMessage<<"\tvComplexD      : "<<sizeof(vComplexD)*8 <<"bits ; " <<GridCmdVectorIntToString(GridDefaultSimd(4,vComplexD::Nsimd()))<<std::endl;
   }
 
-  std::string BLACK("\033[30m");
-  std::string RED("\033[31m");
-  std::string GREEN("\033[32m");
-  std::string YELLOW("\033[33m");
-  std::string BLUE("\033[34m");
-  std::string PURPLE("\033[35m");
-  std::string CYAN("\033[36m");
-  std::string WHITE("\033[37m");
-  std::string NORMAL("\033[0;39m");
   std::cout <<std::endl;
-  std::cout <<GREEN<< "         GGG  "<<RED<<"  RRRR  "<<BLUE<<"  IIIII "<<PURPLE<<"  DDDD    "<<std::endl;
-  std::cout <<GREEN<< "        G   G "<<RED<<"  R   R "<<BLUE<<"    I   "<<PURPLE<<"  D   D   "<<std::endl;
-  std::cout <<GREEN<< "        G     "<<RED<<"  R   R "<<BLUE<<"    I   "<<PURPLE<<"  D    D  "<<std::endl;
-  std::cout <<GREEN<< "        G  GGG"<<RED<<"  RRRR  "<<BLUE<<"    I   "<<PURPLE<<"  D    D  "<<std::endl;
-  std::cout <<GREEN<< "        G   G "<<RED<<"  R  R  "<<BLUE<<"    I   "<<PURPLE<<"  D   D   "<<std::endl;
-  std::cout <<GREEN<< "         GGGG "<<RED<<"  R   R "<<BLUE<<"  IIIII "<<PURPLE<<"  DDDD    "<<std::endl;
+  std::cout <<Logger::GREEN<< "         GGG  "<<Logger::RED<<"  RRRR  "<<Logger::BLUE<<"  IIIII "<<Logger::PURPLE<<"  DDDD    "<<std::endl;
+  std::cout <<Logger::GREEN<< "        G   G "<<Logger::RED<<"  R   R "<<Logger::BLUE<<"    I   "<<Logger::PURPLE<<"  D   D   "<<std::endl;
+  std::cout <<Logger::GREEN<< "        G     "<<Logger::RED<<"  R   R "<<Logger::BLUE<<"    I   "<<Logger::PURPLE<<"  D    D  "<<std::endl;
+  std::cout <<Logger::GREEN<< "        G  GGG"<<Logger::RED<<"  RRRR  "<<Logger::BLUE<<"    I   "<<Logger::PURPLE<<"  D    D  "<<std::endl;
+  std::cout <<Logger::GREEN<< "        G   G "<<Logger::RED<<"  R  R  "<<Logger::BLUE<<"    I   "<<Logger::PURPLE<<"  D   D   "<<std::endl;
+  std::cout <<Logger::GREEN<< "         GGGG "<<Logger::RED<<"  R   R "<<Logger::BLUE<<"  IIIII "<<Logger::PURPLE<<"  DDDD    "<<std::endl;
   std::cout << std::endl;
-  std::cout <<RED<< std::endl;
+  std::cout << std::endl;
+  std::cout <<Logger::RED<< std::endl;
   std::cout << "Copyright (C) 2015 Peter Boyle, Azusa Yamaguchi, Guido Cossu, Antonin Portelli and other authors"<<std::endl;
+  std::cout << "Colours by Tadahito Boyle "<<std::endl;
   std::cout << std::endl;
   std::cout << "This program is free software; you can redistribute it and/or modify"<<std::endl;
   std::cout << "it under the terms of the GNU General Public License as published by"<<std::endl;
@@ -266,7 +259,7 @@ void Grid_init(int *argc,char ***argv)
   std::cout << "but WITHOUT ANY WARRANTY; without even the implied warranty of"<<std::endl;
   std::cout << "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"<<std::endl;
   std::cout << "GNU General Public License for more details."<<std::endl;
-  std::cout << BLACK <<std::endl;
+  std::cout << Logger::BLACK <<std::endl;
 }
 
   
diff --git a/lib/Log.cc b/lib/Log.cc
index 22c2644f..911ab0d0 100644
--- a/lib/Log.cc
+++ b/lib/Log.cc
@@ -34,14 +34,23 @@ namespace Grid {
 
 GridStopWatch Logger::StopWatch;
 std::ostream  Logger::devnull(0);
+std::string Logger::BLACK("\033[30m");
+std::string Logger::RED("\033[31m");
+std::string Logger::GREEN("\033[32m");
+std::string Logger::YELLOW("\033[33m");
+std::string Logger::BLUE("\033[34m");
+std::string Logger::PURPLE("\033[35m");
+std::string Logger::CYAN("\033[36m");
+std::string Logger::WHITE("\033[37m");
+std::string Logger::NORMAL("\033[0;39m");
 
-GridLogger GridLogError      (1,"Error");
-GridLogger GridLogWarning    (1,"Warning");
-GridLogger GridLogMessage    (1,"Message");
-GridLogger GridLogDebug      (1,"Debug");
-GridLogger GridLogPerformance(1,"Performance");
-GridLogger GridLogIterative  (1,"Iterative");
-GridLogger GridLogIntegrator (1,"Integrator");
+  GridLogger GridLogError      (1,"Error",Logger::RED);
+  GridLogger GridLogWarning    (1,"Warning",Logger::YELLOW);
+  GridLogger GridLogMessage    (1,"Message",Logger::BLACK);
+  GridLogger GridLogDebug      (1,"Debug",Logger::PURPLE);
+  GridLogger GridLogPerformance(1,"Performance",Logger::GREEN);
+  GridLogger GridLogIterative  (1,"Iterative",Logger::BLUE);
+  GridLogger GridLogIntegrator (1,"Integrator",Logger::BLUE);
 
 void GridLogConfigure(std::vector<std::string> &logstreams)
 {
diff --git a/lib/Log.h b/lib/Log.h
index bd1a36e7..9119cc4f 100644
--- a/lib/Log.h
+++ b/lib/Log.h
@@ -37,13 +37,23 @@ namespace Grid {
 class Logger {
 protected:
     int active;
-    std::string name, topName;
+    std::string name, topName, COLOUR;
 public:
     static GridStopWatch StopWatch;
     static std::ostream devnull;
+
+    static std::string BLACK;
+    static std::string RED  ;
+    static std::string GREEN;
+    static std::string YELLOW;
+    static std::string BLUE  ;
+    static std::string PURPLE;
+    static std::string CYAN  ;
+    static std::string WHITE ;
+    static std::string NORMAL;
     
-    Logger(std::string topNm, int on, std::string nm)
-    : active(on), name(nm), topName(topNm) {};
+ Logger(std::string topNm, int on, std::string nm,std::string col)
+   : active(on), name(nm), topName(topNm), COLOUR(col) {};
     
     void Active(int on) {active = on;};
     int  isActive(void) {return active;};
@@ -53,9 +63,9 @@ public:
             StopWatch.Stop();
             GridTime now = StopWatch.Elapsed();
             StopWatch.Start();
-            stream << std::setw(8) << std::left << log.topName << " : ";
-            stream << std::setw(12) << std::left << log.name << " : ";
-            stream << now << " : ";
+            stream << BLACK<< log.topName << BLACK<< " : ";
+            stream << log.COLOUR <<std::setw(10) << std::left << log.name << BLACK << " : ";
+            stream << YELLOW<< now <<BLACK << " : " << log.COLOUR;
             return stream;
         } else { 
             return devnull;
@@ -66,7 +76,7 @@ public:
     
 class GridLogger: public Logger {
 public:
-  GridLogger(int on, std::string nm): Logger("Grid", on, nm){};
+ GridLogger(int on, std::string nm, std::string col = Logger::BLACK): Logger("Grid", on, nm, col){};
 };
 
 void GridLogConfigure(std::vector<std::string> &logstreams);