flag is known as the "Lone Star Flag" hence the state's
nickname "The Lone Star State". The flag was introduced
to the Congress of the Republic of Texas on December 28, 1838 and
was adopted on January 25, 1839 as the final national flag of the
Republic of Texas.
When Texas became the 28th state of the Union on December 29, 1845,
its national flag became the state flag. While the Lone Star remained
the de facto state flag, from 1879 until 1933 there was no official
state flag. Texas was formally flagless until the passage of the
1933 Texas Flag Code. The official Pantone shades for the Texas
flag are 193 (red) and 281 (dark blue).