Just in time for Valentine’s Day, the widely-used mobile payment service shared a photo of heart sunglasses with words written on them.

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The illusion image is hard to read at first, tasking viewers to think outside the box to solve it.

“We’ve got a message that’ll make you blush,” Venmo wrote in the caption.

At first glance, the image appears to be a QR code but using your phone’s camera won’t help you figure it out.

However, your phone may come in handy if you’re in a pinch.

On the lens of the sunglasses is a hidden message in blue letters but it’s hard to make out with the pink design.

If you can read it without any assistance, you may just have sharper eyes than most.

But if you’re still struggling, Venmo has offered a hint.

“Screenshot this post and use the pink highlighter to see what it says,” read the rest of the caption.

By screenshotting the image, you can find it saved on the photo app on your phone.

After this, you can tap to edit the image and then choose to draw on it using the highlighter tool.

By using a dark pink highlighter and drawing on the hearts, you’ll be able to reveal the hidden message.

“You’re my Venmo crush.”

The post then calls for viewers to tag their “Venmo crush” after solving the riddle.

Many people admitted the illusion had them quite stumped.

“For a second I thought I was colorblind,” one commenter said.

“Yeah I’m colorblind,” another commenter said.

If you’re looking to continue challenging your brain, scroll down for some more tricky illusions.

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In this second illusion, you’ll obviously see tons of kissy lips.

But can you spot the little pink heart among them in less than 20 seconds?

The pink heart is hard to spot within the sea of pink and red lips.

Try to look very closely and you won’t be able to unseen it once you spot it.

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If you can spot the pink heart in less than 20 seconds then you have 20/20 vision.

The color of the pink heart is very similar to the other pink lips making it hard to find.

Here is a clue – the pink heart is on the right side of the image.

Hopefully, you were able to spot it.

The answer has been circled below.

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Are you looking to challenge your brain some more? 

You can try to spot a wrinkled dog among a sea of towels and you have 20/20 vision if you find the answer quickly. 

The dog’s face blends in with the wrinkles on the towels.

But if you look closely you’ll be able to spot the pup.

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You can tell it is the dog when you see its eyes and the nose.

There may be a few towels that trick you into thinking it’s the dog.

But you’ll want to decipher which is which.

The answer is circled below.

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