Update plotly_colorwheel.txt

plotly_colorwheel.txt

@@ -5,7 +5,7 @@
 #
 # id, color_name, hex
 0,  Single Voice (reserved), #DE7C78
-1,  Slate Blue,    #6d8bf7
+1,  Slate Blue,    #89a1f5
 2,  pastel green,   #73d995
 3,  Burgundy,      #D21F52
 4,  Steel Teal,    #41BDBD
@@ -16,7 +16,7 @@
 9,  Multi Voice (reserved), #64A377
 10, Charcoal Sage, #84d1ae
 11, Rust Brown,    #EC5C23
-12, Dusty Navy,    #3F6DBF
+12, Dusty Navy,    #6b78d1
 13, Warm Terracotta, #f57f4e
 14, Plum,          #f75ca9
 15, Warm Slate,    #B89466