It’s something that most of us learn as toddlers.
But a new test will have you questioning everything you thought you knew about colours.
The ‘Hue Shift’ test shows you two colours and asks you to adjust one so they match.
Sounds simple? With just 10 seconds to match the colours, the game is actually deceptively difficult.
‘Two colours. One is fixed. The other is yours to bend,’ the game instructions explain.
‘Drag to shift hue and lightness until they match.
’10 rounds. 10 seconds each. A countdown from 3 locks in your answer.’
At the end of the game, your ‘delta–E’ score will be revealed – the lower the better. So, how good is your colour perception?
The ‘Hue Shift’ test shows you two colours and asks you to adjust one so they match
Each round, you’ll be shown two colour blocks on your screen, and all you need to do is adjust the colour on the right to match the one on the left
The game is the brainchild of software engineer, Keith Cirkel, who has a range of fun, colour–based games on his website.
To play, visit the game here, and tap or click the white button that reads ‘Let’s go’.
Each round, you’ll be shown two colour blocks on your screen, and all you need to do is adjust the colour on the right to match the one on the left.
For help, look at the colour palette at the top of the screen, which will guide you on where to go.
Remember, you only have 10 seconds to find the closest match, with a countdown appearing on screen when you’ve only got three seconds left.
After each guess, you’ll be told how close you were. The lower the score, the closer the match.
At the end of the game, you’ll be given your score, and told how it stacks up against the other people who have played it.
‘The drag controls take a round or two to click. Once that’s in your fingers the scores drop fast. Worth another go,’ a message reads if your score is low.
After each guess, you’ll be told how close you were. The lower the score, the closer the match
In contrast, if you nail it, you might see a message saying: ‘Consistent and controlled. You understood early that horizontal is hue and vertical is lightness, and you didn’t fight the axes.’
If you enjoy this game, you’ll be happy to hear that Mr Cirkel has another banger up his sleeve.
His ‘What’s My JND?’ test recently went viral, after players became enthralled with trying to find the line between two colours.
‘You see two colours. Click on the line between them. That’s it. It starts easy. It does not stay easy,’ the game’s instructions explain.
‘Each round the colours get closer together until we find your Just Noticeable Difference – the smallest colour change you can actually see.’
WHAT IS THE DELBOEUF ILLUSION?
The Delboeuf illusion is one type of visual illusion where a dot surrounded by a large ring is typically perceived to be smaller than the same-sized dot surrounded by a small ring.
This optical trick works because your brain perceives the dot in the context of the outer ring.
It was named after the Belgian philosopher and mathematician Joseph Remi Leopold Delboeuf (1831 – 1896), who created it in 1865.
The Delboeuf illusion is one type of visual illusion where a dot surrounded by a large ring is typically perceived to be smaller than the same-sized dot surrounded by a small ring
In terms of plate size, the theory goes that having a smaller plate tricks people into thinking they have more food.
However, new research suggests that when people are hungry, they are able to identify food portion accurately, no matter how it is served.
According to the researchers, this indicates that hunger stimulates stronger analytic processing that is not as easily fooled by the illusion.
However, the Delboeuf illusion is widely believed to work in other contexts.
