diff --git a/content/en/methods/resource/Colors.md b/content/en/methods/resource/Colors.md
index 4485d4f67..b062210ba 100644
--- a/content/en/methods/resource/Colors.md
+++ b/content/en/methods/resource/Colors.md
@@ -149,7 +149,7 @@ The WCAG defines the [contrast ratio] as:
 
 $$contrast\ ratio = { L_1 + 0.05 \over L_2 + 0.05 }$$
 
-where $L_1$ is the relative luminance of the lighest color and $L_2$ is the relative luminance of the darkest color.
+where $L_1$ is the relative luminance of the lightest color and $L_2$ is the relative luminance of the darkest color.
 
 Calculate the contrast ratio to determine WCAG conformance: