Nicky Hilton is a vision in yellow as she turns heads in chic ensemble at Melbourne Cup

Nicky Hilton stole the spotlight at this year's Melbourne Cup, showcasing an effortlessly chic pastel yellow outfit that had heads turning all day.

On Tuesday, the 41-year-old looked stunning as she arrived in an eye-catching off-the-shoulder Rebecca Vallance blazer that accentuated her refined, elegant style.

She teamed her stunning ensemble with a floating, whimsical skirt that swept gracefully as she moved around the racecourse.

Nicky opted for blue and silver heels that peeked out from beneath her flowing skirt, providing a pop of unexpected colour and extra flair.

She accessorised with a sleek silver necklace, which complemented the gentle tones of her outfit, adding a touch of luxury to her look.

The American socialite completed her Melbourne Cup look with a striking gold hat that rested perfectly atop her blonde locks, styled into soft waves.

For makeup, Hilton went all out with a glamorous palette, highlighting her stunning features with bold yet classic touches.

Her glowing skin, perfectly contoured cheeks, and a soft pink lip added an air of elegance to her overall look.

Throughout the day Nicky was seen mingling among the likes of Nadia Bartel and designer Rebecca Vallance. 

Her younger sister Paris Hilton, while not attendance, gave Nicky a shoutout on Instagram.

She shared an image of the Herald Sun's front page featuring her sibling with Melbourne contender Land Legend.

'Nicky Hilton looking gorgeous at the Melbourne Cup in her Rebecca Vallance collection,' she posted on Tuesday morning.