diff --git a/include/fmt/core.h b/include/fmt/core.h
index 166447b1..e11a8986 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -397,11 +397,6 @@ class container_buffer : public basic_buffer<typename Container::value_type> {
       container_(c) {}
 };
 
-// A helper function to suppress bogus "conditional expression is constant"
-// warnings.
-template <typename T>
-inline T const_check(T value) { return value; }
-
 struct error_handler {
   FMT_CONSTEXPR error_handler() {}
   FMT_CONSTEXPR error_handler(const error_handler &) {}
@@ -1136,9 +1131,9 @@ inline internal::named_arg<T, wchar_t> arg(wstring_view name, const T &arg) {
 template <typename S, typename T, typename Char>
 void arg(S, internal::named_arg<T, Char>) FMT_DELETED;
 
-enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
+enum color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
 
-FMT_API void vprint_colored(Color c, string_view format, format_args args);
+FMT_API void vprint_colored(color c, string_view format, format_args args);
 
 /**
   Formats a string and prints it to stdout using ANSI escape sequences to
@@ -1147,7 +1142,7 @@ FMT_API void vprint_colored(Color c, string_view format, format_args args);
     fmt::print_colored(fmt::RED, "Elapsed time: {0:.2f} seconds", 1.23);
  */
 template <typename... Args>
-inline void print_colored(Color c, string_view format_str,
+inline void print_colored(color c, string_view format_str,
                           const Args & ... args) {
   vprint_colored(c, format_str, make_args(args...));
 }
diff --git a/include/fmt/format.cc b/include/fmt/format.cc
index 0e7abb23..cff18aad 100644
--- a/include/fmt/format.cc
+++ b/include/fmt/format.cc
@@ -414,7 +414,7 @@ FMT_FUNC void vprint(string_view format_str, format_args args) {
   vprint(stdout, format_str, args);
 }
 
-FMT_FUNC void vprint_colored(Color c, string_view format, format_args args) {
+FMT_FUNC void vprint_colored(color c, string_view format, format_args args) {
   char escape[] = "\x1b[30m";
   escape[3] = static_cast<char>('0' + c);
   std::fputs(escape, stdout);
diff --git a/include/fmt/format.h b/include/fmt/format.h
index d85d7f7b..2ec2f889 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -262,6 +262,11 @@ typename Allocator::value_type *allocate(Allocator& alloc, std::size_t n) {
   return alloc.allocate(n);
 #endif
 }
+
+// A helper function to suppress bogus "conditional expression is constant"
+// warnings.
+template <typename T>
+inline T const_check(T value) { return value; }
 }  // namespace internal
 }  // namespace fmt