--- a/mercurial/color.py	Thu Feb 16 10:52:27 2017 +0100
+++ b/mercurial/color.py	Thu Dec 22 13:19:12 2016 +0100
@@ -165,14 +165,14 @@
     'Wrap text in commands to turn on each effect.'
     if not text:
         return text
-    if not _terminfo_params:
+    if _terminfo_params:
+        start = ''.join(_effect_str(effect)
+                        for effect in ['none'] + effects.split())
+        stop = _effect_str('none')
+    else:
         start = [str(_effects[e]) for e in ['none'] + effects.split()]
         start = '\033[' + ';'.join(start) + 'm'
         stop = '\033[' + str(_effects['none']) + 'm'
-    else:
-        start = ''.join(_effect_str(effect)
-                        for effect in ['none'] + effects.split())
-        stop = _effect_str('none')
     return ''.join([start, text, stop])
 
 w32effects = None