diff --git a/rtengine/improcfun.cc b/rtengine/improcfun.cc
index 96920c3da..5c96aa6fd 100644
--- a/rtengine/improcfun.cc
+++ b/rtengine/improcfun.cc
@@ -2365,13 +2365,13 @@ void ImProcFunctions::ciecam_02float (CieImage* ncie, float adap, int begh, int
                             hist16JCAM[posl]++;
 
                             if (curveMode3 == ColorAppearanceParams::TC_MODE_CHROMA) {
-                                chsacol = 327.f;
+                                chsacol = 400.f;//327
                                 colch = C;    //450.0 approximative factor for s    320 for M
                             } else if (curveMode3 == ColorAppearanceParams::TC_MODE_SATUR) {
                                 chsacol = 450.0f;
                                 colch = s;
                             } else { /*if(curveMode3 == ColorAppearanceParams::TC_MODE_COLORF)*/
-                                chsacol = 327.0f;
+                                chsacol = 400.0f;//327
                                 colch = M;
                             }
 
diff --git a/rtgui/diagonalcurveeditorsubgroup.cc b/rtgui/diagonalcurveeditorsubgroup.cc
index d12cdf023..936bf0d64 100644
--- a/rtgui/diagonalcurveeditorsubgroup.cc
+++ b/rtgui/diagonalcurveeditorsubgroup.cc
@@ -620,7 +620,9 @@ void DiagonalCurveEditorSubGroup::switchGUI()
         } else {
             // dCurve ave a ColorProvider or a background gradient defined, so we create/update the object
             if (!leftBar) {
-                leftBar = new ColoredBar(RTO_Bottom2Top);
+				leftBar = new ColoredBar(RTO_Bottom2Top);
+				
+				
             }
 
             if (barColorProvider) {
diff --git a/rtgui/labcurve.cc b/rtgui/labcurve.cc
index dc9e404fb..c39dc99fc 100644
--- a/rtgui/labcurve.cc
+++ b/rtgui/labcurve.cc
@@ -574,6 +574,21 @@ void LCurve::colorForValue (double valX, double valY, enum ColorCaller::ElemType
         // whole hue range
         // Y axis / from 0.15 up to 0.75 (arbitrary values; was 0.45 before)
         Color::hsv2rgb01(float(valY), float(valX), value, R, G, B);
+    } else if (callerId == 6) {  // cc - left bar
+
+        float value = (1.f - 0.7f) * float(valX) + 0.7f;
+            float hue = (1.14056f - 0.92f) * float(valY) + 0.92f;
+
+            if (hue > 1.0f) {
+                hue -= 1.0f;
+            }
+
+            // Y axis / from 0.15 up to 0.75 (arbitrary values; was 0.45 before)
+            Color::hsv2rgb01(hue, float(valX), value, R, G, B);
+		
+        // whole hue range
+        // Y axis / from 0.15 up to 0.75 (arbitrary values; was 0.45 before)
+      //  Color::hsv2rgb01(float(valY), float(valX), value, R, G, B);
     } else if (callerId == 3) {  // lc - bottom bar
 
         float value = (1.f - 0.7f) * float(valX) + 0.7f;