diff --git a/Tests/LibWeb/Text/expected/HTML/short-legacy-color-value.txt b/Tests/LibWeb/Text/expected/HTML/short-legacy-color-value.txt
new file mode 100644
index 0000000000..3a2d263b04
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/HTML/short-legacy-color-value.txt
@@ -0,0 +1 @@
+ PASS (didn't crash)
diff --git a/Tests/LibWeb/Text/input/HTML/short-legacy-color-value.html b/Tests/LibWeb/Text/input/HTML/short-legacy-color-value.html
new file mode 100644
index 0000000000..d37468df8c
--- /dev/null
+++ b/Tests/LibWeb/Text/input/HTML/short-legacy-color-value.html
@@ -0,0 +1,7 @@
+
+
+
diff --git a/Userland/Libraries/LibWeb/HTML/Parser/HTMLParser.cpp b/Userland/Libraries/LibWeb/HTML/Parser/HTMLParser.cpp
index 99c93ab1f7..6de3d078f6 100644
--- a/Userland/Libraries/LibWeb/HTML/Parser/HTMLParser.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Parser/HTMLParser.cpp
@@ -4879,6 +4879,9 @@ Optional parse_legacy_color_value(StringView string)
}
auto to_hex = [&](StringView string) -> u8 {
+ if (length == 1) {
+ return hex_nibble_to_u8(string[0]);
+ }
auto nib1 = hex_nibble_to_u8(string[0]);
auto nib2 = hex_nibble_to_u8(string[1]);
return nib1 << 4 | nib2;