It didn't necessary have meaning - it just gave them a color which distinguished them from Union forces.
Their uniforms were grey.
Confederate uniforms, gray wool uniforms
Their uniforms were gray. If needed...the Confederate flag had a red background with a blue X across it outlined in white. The uniforms of the Confederacy were gray. Their flag was red, white, and blue.
Confederate uniforms were grey. The Union Army wore dark blue.
Union uniforms were blue; Confederate uniforms were gray.
No, the Confederates primarily wore gray uniforms during the American Civil War. While there were variations and some units wore different colors, blue was typically associated with the Union army. Some Confederate troops might have worn blue due to lack of resources or captured uniforms, but gray was the standard.
wool
The Southern (Confederate) Army wore grey uniforms.
At the beginning of the US Civil War, some of the the Confederate army uniforms were a butternut color. Grey was introduced as soon as these color uniforms could be produced. The US army already had blue uniforms and remained with that color.
Grey. At the war's first battle (Bull Run/Manassas), one Confederate unit was wearing blue, and managed to capture a couiple of Union batteries, because the gunners thought they were friend not foe.
gray uinforms
they were made by wood.