diff --git a/bootstraptest/runner.rb b/bootstraptest/runner.rb
index fa5e8537e8..d9711fef38 100755
--- a/bootstraptest/runner.rb
+++ b/bootstraptest/runner.rb
@@ -136,7 +136,13 @@ End
   @tty &&= !@verbose
   if @color
     # dircolors-like style
-    colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:]*)/)] : {}
+    colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:\n]*)/)] : {}
+    begin
+      File.read(File.join(__dir__, "../test/colors")).scan(/(\w+)=([^:\n]*)/) do |n, c|
+        colors[n] ||= c
+      end
+    rescue
+    end
     @passed = "\e[;#{colors["pass"] || "32"}m"
     @failed = "\e[;#{colors["fail"] || "31"}m"
     @reset = "\e[m"
diff --git a/sample/test.rb b/sample/test.rb
index 85a11e0d4d..14f4d4a0f1 100755
--- a/sample/test.rb
+++ b/sample/test.rb
@@ -33,7 +33,13 @@ class Progress
     end
     if @color
       # dircolors-like style
-      colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:]*)/)] : {}
+      colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:\n]*)/)] : {}
+      begin
+        File.read(File.join(__dir__, "../test/colors")).scan(/(\w+)=([^:\n]*)/) do |n, c|
+          colors[n] ||= c
+        end
+      rescue
+      end
       @passed = "\e[;#{colors["pass"] || "32"}m"
       @failed = "\e[;#{colors["fail"] || "31"}m"
       @reset = "\e[m"
diff --git a/test/colors b/test/colors
new file mode 100644
index 0000000000..a65c326ade
--- /dev/null
+++ b/test/colors
@@ -0,0 +1,3 @@
+pass=36;7
+fail=31;1;7
+skip=33;1
diff --git a/test/lib/test/unit.rb b/test/lib/test/unit.rb
index 996134eaf3..9d9ff4bdf3 100644
--- a/test/lib/test/unit.rb
+++ b/test/lib/test/unit.rb
@@ -596,7 +596,13 @@ module Test
         end
         if color
           # dircolors-like style
-          colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:]*)/)] : {}
+          colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:\n]*)/)] : {}
+          begin
+            File.read(File.join(__dir__, "../../colors")).scan(/(\w+)=([^:\n]*)/) do |n, c|
+              colors[n] ||= c
+            end
+          rescue
+          end
           @passed_color = "\e[;#{colors["pass"] || "32"}m"
           @failed_color = "\e[;#{colors["fail"] || "31"}m"
           @skipped_color = "\e[;#{colors["skip"] || "33"}m"