Hair colour - help

[brunettegirl]

Hi!

So I have problems with determining my hair colour. My hair is 1oo% natural.
It changes colour in my pictures depending on the light and camera I use. Sometimes it's light brown, sometimes dark brown sometimes it's even blondish. Do you have these problems too?
I took a picture outside in the sun in daylight, which should be the best way to take a real hair picture. As you can see my profile picture is not nearly close to the bottom photo. I really don't know how to take an accurate picture to determine my hair colour. It's driving me nuts.

So what do you think, which colour it is? Thanks for help!