I’d say brown. [del]My wife would say blond. Or maybe blonde.[/del] OK, I just asked, and she surprised me and said light brown.
Then she said it’s “blonette”. A term used on the long hair forum she reads. Too dark to be blond and too light to be brown.
one was dark brown, although now it is gray and she dyes locks of it pink and green. The other was really close to my color, she’s also gray. I myself inherited my mother’s non-graying hair, so neener neener.
Wow! After all these years there’s finally a name for my natural hair color besides “dirty dishwater blonde”! 
And a little Googling shows that it’s becoming popular and is considered expensive and “hard to achieve”! Well I do make liberal use of Sun In, but other than that it’s all genetics, thanks Dad!
Aw, you didn’t have to say that. I’m in my mid-sixties and gray is just now starting to show up in my (brown) hair.
My husband and I used to argue about this all the time. Not about your hair, OP, but about what you call that color. I’ve always called it “blond” because to me the concept of “dark blond” exists. To him, only someone with really yellow hair could be blond. To me, only brunettes could be said to have brown hair.
We settled are argument by walking up and down the aisles at a drug store, looking at the hair coloring and names. We agreed that we were both right: the light brown/dark blond color was available in packages marketed labels such as honey blond, moonlit brown, maple blond, caramel brown, walnut blond, lustrous light brown…etc. etc.
Bottom line: there’s a lot of overlap in the “dark blond” and “light brown” categories.
Do you live in the same small, genetically colurblind town as the OP? His hair’s light brown, making yours medium brown.
It’s dark ash blond. My son’s used to be the same, though the older he gets the darker it gets, and right now his is almost brown.
I would probably call it light brown, but I don’t think dark blonde is wrong.
Dirty blond.
Mousy brown. It’s the color that can be any color, frankly. Put highlights? It’s blonde. Weak dye? You’re a redhead or a brunette.
Go for spy! Change it all the time!
Or pick a personality you like. I have the same hair color by nature.
When I was young I started coloring my hair reddish. I worked retail and had people when they saw me buying hair color were shocked I wasn’t a redhead.
Work it!
Shit brindle.
Yeah, it can be anything from dirty/dishwater blond to a light brown. It’s impossible to tell from that photo, but I’d lean towards blonde. I think it’s a continuum, though, and there’s no clear divide between the darker blonds and the lighter browns. Seeing it in sunlight and observing the highlights would help me pick between the two.
Light brown. My brothers and sister were born with blonde hair, and it went to your color by the time they hit puberty.
My original color is what I call ‘wet driftwood’, or ‘wet sidewalk’. 
Otherwise known as ash brown; yours is a little lighter than that, but I would not call it blonde.
Which hair. It’s a joke, son. I have a friend who says he is going to get his hair cut. To which I reply “Which one?” THIS one!
It never gets old…
Light brown / reddish. My hair is a similar color, and one person once said I was blonde.
I never ate a brown radish. 
The way I learned to tell the difference.
Find something white and something black. put them side by side and lay a strand of hair across them. If you can’t see it on the white side it’s blond. If you can’t see it on the black side it’s brown.
If you can see it on both sides, you are back where you started.
I would never call that blonde. Definitely light brown (but frankly not all that light)…
I went through a similar thing because I was super blonde as a kid and my hair darkened continually over time, until now where the hair I still have remaining (I’m quite bald on top) is a dark brown, nearly black. When I was in the transition with hair your color, I always considered it brown.
How I tell the difference is this: when it’s wet, if it’s really dark, it’s brown, if it stays yellowish, it’s blonde.
The thing about calling everything that isn’t pale yellow “brown” is that brown stops being descriptive. If I tell people I am a dark blond in a black jacket, they find me. With dark gold hair, pale skin and blue eyes, I read as blonde.
If I tell them I am a brunette in a black jacket, they look at the 500,000 people with deeper brown hair first and brunette type complexions first.
Yeah, my wife has hair that I would say is at least as dark as the OP’s, and it’s definitely what I and most people I know call blonde (as on her driver’s license and passport, too.) I’m going to guess it’s probably similar to the color your hair is.
That said, I can’t say anything definitively in that photo.
My wife’s hair definitely turns what I would call a fairly deep brown when it’s wet. But the majority of people describe it as blond. (In fact, I can’t think of anyone who would call her a brunette, but it’s not like I talk about my wife’s hair color that much with our friends.) In certain light, though, you can clearly see what I would think everyone here would agree on (but I can’t be sure, given this thread) as blonde highlights. In some pictures, it looks brown. In others, definitely a medium to dark blonde.