Rachael’s cheeky message shows she is VERY aware of what Bachelor Richie’s type is.

Video via Channel 10

It’s no secret that Richie loves girls whose hair is of the lighter shade.

Don’t believe us? Just look at the crop of gals who are left. THEY ARE ALL BLONDE.

SO. MANY. BLONDES. Image via Channel 10.

Except for Rachael... Who admittedly, has a bit of blonde balayage going on, but apparently that's not enough.

One by one the brunettes - think Noni, Kahlia, Eliza, Georgia and Janey - have all been kicked to the curb, and it hasn't gone unnoticed by the 31-year-old support worker.

In a promo for next week's episode, Rachael points out that all of her other housemates are fair-haired.

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"They're all blondes, aren't they?" she asks, before bursting into a fit of laughter.

This is the face of a woman who is secretly terrified that her hair ISN'T BLONDE ENOUGH. Image via Channel 10.

"I'm the only brunette left!"

Considering Rachael was the final girl to receive a rose on the last episode, could this mean that she's on the chopping block next?

SCROLL THROUGH the gallery to see who is left in the competition for Richie's heart...

Even former contestant Eliza made a joke about Richie's penchant for flaxen hair.

"He obviously didn't like the blue velvet rose," she told the Bach Chat podcast.

"I should have made a blonde rose!"

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