Countdown’s Rachel Riley shows off her incredible figure in tight rainbow coloured dress on Channel 4 show

RACHEL Riley displayed her stunning figure in a colourful rainbow dress on Countdown.

The maths genius blessed the screen on Wednesday with a bright and vibrant look as she presented the Channel 4 show with radio and TV presenter Colin Murray.

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The Countdown presenter wore a visually pleasing long-sleeve rainbow maxi dress with shiny red stilettos to match.

Her long blonde hair was in a half-up, half-down bun hairdo next to her small gold hooped earrings.

The mother-of-two wore a natural makeup glow with a subtle smokey eye look.

In the latest episode, Colin told Rachel he Google searched " What colour eyes does Rachel Riley have?" reassuring Rachel he 'quickly deleted.' the search history after. 

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July 12 was National Different Coloured Eyes Day, where people with different eye colours or multiple colours, called Heterochromia, are celebrated.

During his search, Colin discovered what a strange place the internet could be.

While searching, he stumbled across a 'strange' website that documented the eye colour of celebrities. 

He told Rachel that her eye colour was dubbed 'Dull green'.

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A surprised Rachel responded: "Dull green?"

Colin replied: ";Dull green is your official eye colour." 

A confused Rachel replied back: "They're not even green at all!"

Countdown airs weekdays from 2:10 pm on Channel 4.

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