diff --git a/lesscpy/lessc/lexer.py b/lesscpy/lessc/lexer.py
index 0d4e1ce..24c826f 100644
--- a/lesscpy/lessc/lexer.py
+++ b/lesscpy/lessc/lexer.py
@@ -98,11 +98,12 @@ class LessLexer:
             t.type = 'css_class'
         elif c == '#':
             t.type = 'css_id'
-            try:
-                int(v[1:], 16)
-                t.type = 'css_color'
-            except ValueError:
-                pass
+            if len(v) in [4, 7]:
+                try:
+                    int(v[1:], 16)
+                    t.type = 'css_color'
+                except ValueError:
+                    pass
         elif v in css.propertys:
             t.type = 'css_property'
             t.value = t.value.strip()
diff --git a/lesscpy/lessc/parser.py b/lesscpy/lessc/parser.py
index ff8fce4..bf6a217 100644
--- a/lesscpy/lessc/parser.py
+++ b/lesscpy/lessc/parser.py
@@ -98,9 +98,6 @@ class LessParser(object):
             else:
                 print(pad, t) 
             self._scopemap_aux(list(utility.flatten(ll.tokens)), lvl+1)
-#        else:
-#            print(pad, t)
-            
     
 #
 #    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -582,7 +579,11 @@ class LessParser(object):
     def p_color(self, p):
         """ color                    : css_color
         """
-        p[0] = Color().fmt(p[1]) 
+        try:
+            p[0] = Color().fmt(p[1]) 
+        except ValueError:
+            self.handle_error('Illegal color value `%s`' % p[1], p.lineno(1), 'W')
+            p[0] = p[1]
         
     def p_number(self, p):
         """ number                    : css_number
diff --git a/lesscpy/scripts/compiler.py b/lesscpy/scripts/compiler.py
index 14ea7e0..26152ed 100644
--- a/lesscpy/scripts/compiler.py
+++ b/lesscpy/scripts/compiler.py
@@ -10,6 +10,7 @@
 import os
 import sys
 import glob
+import copy
 import argparse
 sys.path.append(os.path.abspath(os.path.dirname(__file__)))
 from lesscpy.lessc import parser
@@ -121,9 +122,7 @@ def run():
             if not scope:
                 scope = p.scope
             else:
-                scope[0].update(p.scope[0])
-    else:
-        scope = None
+                scope.update(p.scope)
     p = None
     f = formatter.Formatter()
     if not os.path.exists(args.target):
@@ -136,7 +135,7 @@ def run():
         p = parser.LessParser(yacc_debug=(args.debug),
                               lex_optimize=True,
                               yacc_optimize=(not args.debug),
-                              scope=scope,
+                              scope=copy.deepcopy(scope),
                               verbose=args.verbose)
         p.parse(filename=args.target, debuglevel=0)
         if args.scopemap:
diff --git a/lesscpy/test/css/identifiers.css b/lesscpy/test/css/identifiers.css
index 93a96df..37d5b63 100644
--- a/lesscpy/test/css/identifiers.css
+++ b/lesscpy/test/css/identifiers.css
@@ -202,3 +202,6 @@ nav,
 section {
 	padding: 0;
 }
+#f7 {
+	color: #fff777;
+}
diff --git a/lesscpy/test/css/identifiers.min.css b/lesscpy/test/css/identifiers.min.css
index 6b170e8..0c9919f 100644
--- a/lesscpy/test/css/identifiers.min.css
+++ b/lesscpy/test/css/identifiers.min.css
@@ -30,3 +30,4 @@ a.one,a.two,a.three,a.four,a.five,a.six,a.seven,a.eight,a.nine,a.ten{max-width:1
 a.longclassname.one,a.longclassname.two,a.longclassname.three,a.longclassname.four,a.longclassname.five,a.longclassname.six,a.longclassname.seven,a.longclassname.eight,a.longclassname.nine,a.longclassname.ten{max-height:12px;}
 html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{padding:0;}
 article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{padding:0;}
+#f7{color:#fff777;}
diff --git a/lesscpy/test/less/identifiers.less b/lesscpy/test/less/identifiers.less
index af2d303..439b79b 100644
--- a/lesscpy/test/less/identifiers.less
+++ b/lesscpy/test/less/identifiers.less
@@ -120,4 +120,10 @@ time, mark, audio, video {
 article, aside, details, figcaption, figure, 
 footer, header, hgroup, menu, nav, section {
 	padding: 0;
-}
\ No newline at end of file
+}
+/*
+	...
+*/
+#f7 {
+	color: #fff777;
+} 
\ No newline at end of file