diff --git a/src/tests/test_ltr_asymmetric.cpp b/src/tests/test_ltr_asymmetric.cpp
index 8f9eb1f..caaffc3 100644
--- a/src/tests/test_ltr_asymmetric.cpp
+++ b/src/tests/test_ltr_asymmetric.cpp
@@ -6,7 +6,7 @@
 using std::string;
 #include <iostream>
 
-SCENARIO("ltr_asymmetric")
+SCENARIO("ltr_asymmetric: Correct placement")
 {
     GIVEN("An identicon instance with 2x2 dots")
     {
@@ -86,3 +86,80 @@ SCENARIO("ltr_asymmetric")
         }
     }
 }
+
+SCENARIO("ltr_asymmetric: Correct color")
+{
+    GIVEN("An identicon instance with 5 foreground colors")
+    {
+        Identiconpp identicon(1, 1, Identiconpp::algorithm::ltr_asymmetric,
+                              "ffffffff",
+                              {
+                                "ff0000ff",
+                                "ffff00ff",
+                                "00ff00ff",
+                                "00ffffff",
+                                "0000ffff"
+                              });
+        Magick::Image img;
+        Magick::Color white("#ffffffff");
+        Magick::Color red("#ff0000ff");
+        Magick::Color yellow("#ffff00ff");
+        Magick::Color green("#00ff00ff");
+        Magick::Color cyan("#00ffffff");
+        Magick::Color blue("#0000ffff");
+
+        WHEN("Digest is \"0\"")
+        {   // 0000
+            img = identicon.generate("0", 1);
+            THEN("Is white")
+            {
+                REQUIRE(img.pixelColor(0, 0) == white);
+            }
+        }
+
+        WHEN("Digest is \"8\"")
+        {   // 1000
+            img = identicon.generate("8", 1);
+            THEN("Is red")
+            {
+                REQUIRE(img.pixelColor(0, 0) == red);
+            }
+        }
+
+        WHEN("Digest is \"9\"")
+        {   // 1001
+            img = identicon.generate("9", 1);
+            THEN("Is yellow")
+            {
+                REQUIRE(img.pixelColor(0, 0) == yellow);
+            }
+        }
+
+        WHEN("Digest is \"a\"")
+        {   // 1010
+            img = identicon.generate("a", 1);
+            THEN("Is green")
+            {
+                REQUIRE(img.pixelColor(0, 0) == green);
+            }
+        }
+
+        WHEN("Digest is \"b\"")
+        {   // 1011
+            img = identicon.generate("b", 1);
+            THEN("Is cyan")
+            {
+                REQUIRE(img.pixelColor(0, 0) == cyan);
+            }
+        }
+
+        WHEN("Digest is \"c\"")
+        {   // 1100
+            img = identicon.generate("c", 1);
+            THEN("Is blue")
+            {
+                REQUIRE(img.pixelColor(0, 0) == blue);
+            }
+        }
+    }
+}
diff --git a/src/tests/test_ltr_symmetric.cpp b/src/tests/test_ltr_symmetric.cpp
index 0580e12..d176705 100644
--- a/src/tests/test_ltr_symmetric.cpp
+++ b/src/tests/test_ltr_symmetric.cpp
@@ -6,7 +6,7 @@
 using std::string;
 #include <iostream>
 
-SCENARIO("ltr_symmetric")
+SCENARIO("ltr_symmetric: Correct placement")
 {
     GIVEN("An identicon instance with 2x2 dots")
     {
@@ -86,3 +86,80 @@ SCENARIO("ltr_symmetric")
         }
     }
 }
+
+SCENARIO("ltr_symmetric: Correct color")
+{
+    GIVEN("An identicon instance with 5 foreground colors")
+    {
+        Identiconpp identicon(1, 1, Identiconpp::algorithm::ltr_symmetric,
+                              "ffffffff",
+                              {
+                                "ff0000ff",
+                                "ffff00ff",
+                                "00ff00ff",
+                                "00ffffff",
+                                "0000ffff"
+                              });
+        Magick::Image img;
+        Magick::Color white("#ffffffff");
+        Magick::Color red("#ff0000ff");
+        Magick::Color yellow("#ffff00ff");
+        Magick::Color green("#00ff00ff");
+        Magick::Color cyan("#00ffffff");
+        Magick::Color blue("#0000ffff");
+
+        WHEN("Digest is \"0\"")
+        {   // 0000
+            img = identicon.generate("0", 1);
+            THEN("Is white")
+            {
+                REQUIRE(img.pixelColor(0, 0) == white);
+            }
+        }
+
+        WHEN("Digest is \"8\"")
+        {   // 1000
+            img = identicon.generate("8", 1);
+            THEN("Is red")
+            {
+                REQUIRE(img.pixelColor(0, 0) == red);
+            }
+        }
+
+        WHEN("Digest is \"9\"")
+        {   // 1001
+            img = identicon.generate("9", 1);
+            THEN("Is yellow")
+            {
+                REQUIRE(img.pixelColor(0, 0) == yellow);
+            }
+        }
+
+        WHEN("Digest is \"a\"")
+        {   // 1010
+            img = identicon.generate("a", 1);
+            THEN("Is green")
+            {
+                REQUIRE(img.pixelColor(0, 0) == green);
+            }
+        }
+
+        WHEN("Digest is \"b\"")
+        {   // 1011
+            img = identicon.generate("b", 1);
+            THEN("Is cyan")
+            {
+                REQUIRE(img.pixelColor(0, 0) == cyan);
+            }
+        }
+
+        WHEN("Digest is \"c\"")
+        {   // 1100
+            img = identicon.generate("c", 1);
+            THEN("Is blue")
+            {
+                REQUIRE(img.pixelColor(0, 0) == blue);
+            }
+        }
+    }
+}
diff --git a/src/tests/test_sigil.cpp b/src/tests/test_sigil.cpp
index 1d710fe..2a9a06a 100644
--- a/src/tests/test_sigil.cpp
+++ b/src/tests/test_sigil.cpp
@@ -6,7 +6,7 @@
 using std::string;
 #include <iostream>
 
-SCENARIO("sigil")
+SCENARIO("sigil: Correct placement")
 {
     GIVEN("An identicon instance with 2x2 dots")
     {
@@ -86,3 +86,80 @@ SCENARIO("sigil")
         }
     }
 }
+
+SCENARIO("sigil: Correct color")
+{
+    GIVEN("An identicon instance with 5 foreground colors")
+    {
+        Identiconpp identicon(1, 1, Identiconpp::algorithm::sigil,
+                              "ffffffff",
+                              {
+                                "ff0000ff",
+                                "ffff00ff",
+                                "00ff00ff",
+                                "00ffffff",
+                                "0000ffff"
+                              });
+        Magick::Image img;
+        Magick::Color white("#ffffffff");
+        Magick::Color red("#ff0000ff");
+        Magick::Color yellow("#ffff00ff");
+        Magick::Color green("#00ff00ff");
+        Magick::Color cyan("#00ffffff");
+        Magick::Color blue("#0000ffff");
+
+        WHEN("Digest is \"000\"")
+        {   // 0000 0000 0000
+            img = identicon.generate("000", 1);
+            THEN("Is white")
+            {
+                REQUIRE(img.pixelColor(0, 0) == white);
+            }
+        }
+
+        WHEN("Digest is \"008\"")
+        {   // 0000 0000 1000
+            img = identicon.generate("008", 1);
+            THEN("Is red")
+            {
+                REQUIRE(img.pixelColor(0, 0) == red);
+            }
+        }
+
+        WHEN("Digest is \"108\"")
+        {   // 0001 0000 1000
+            img = identicon.generate("108", 1);
+            THEN("Is yellow")
+            {
+                REQUIRE(img.pixelColor(0, 0) == yellow);
+            }
+        }
+
+        WHEN("Digest is \"208\"")
+        {   // 0010 0000 1000
+            img = identicon.generate("208", 1);
+            THEN("Is green")
+            {
+                REQUIRE(img.pixelColor(0, 0) == green);
+            }
+        }
+
+        WHEN("Digest is \"308\"")
+        {   // 0011 0000 1000
+            img = identicon.generate("308", 1);
+            THEN("Is cyan")
+            {
+                REQUIRE(img.pixelColor(0, 0) == cyan);
+            }
+        }
+
+        WHEN("Digest is \"408\"")
+        {   // 0100 0000 1000
+            img = identicon.generate("408", 1);
+            THEN("Is blue")
+            {
+                REQUIRE(img.pixelColor(0, 0) == blue);
+            }
+        }
+    }
+}