diff --git a/words/scales.txt b/words/scales.txt
index f3ba7c22d..53e788bb2 100644
--- a/words/scales.txt
+++ b/words/scales.txt
@@ -496,3 +496,17 @@ parrotfish
 triggerfish
 tench
 shiner
+pantone
+rainbow
+munsell
+werner
+hue
+saturation
+gamut
+chroma
+tint
+shade
+luma
+spectrum
+roygbiv
+pride
diff --git a/words/tails.txt b/words/tails.txt
index d3031c840..684afb651 100644
--- a/words/tails.txt
+++ b/words/tails.txt
@@ -832,3 +832,4 @@ swordtail
 oarfish
 newt
 olm
+rainbow