40th Birthday Party Supplies, Decorations & Ideas

Forty and fabulous — and this milestone deserves every bit of the celebration! Our 40th birthday party supplies have everything you need to throw an unforgettable fortieth birthday party for the remarkable woman turning 40. Start with our show-stopping custom face 40th birthday garland banner — available in six-plus color options so you can match any party aesthetic perfectly — then build the most personalized party table around with our 40th birthday photo centerpieces and our custom photo 40th birthday cake topper that puts her photo front and center on the cake. Fill your space with 40th birthday party decorations including table runners, centerpieces, balloon bouquets, birthday hats, personalized 40th birthday party favors, and photo booth props — all in classic black, gold, and white. Wondering what color represents a 40th birthday? Black and gold is the traditional 40th birthday color combination — bold, elegant, and timeless — and our entire collection is built around this iconic palette. All made in the USA and shipped fast.

Browse our full collection of milestone birthday party supplies for every age and style! 

What are the traditional colors for a 40th birthday?

Black and gold are the traditional colors for a 40th birthday — a bold and elegant combination that feels sophisticated, celebratory, and timeless. The black represents the gravitas of four decades well lived while the gold symbolizes achievement and value. Our 40th birthday party supplies are built entirely around this classic black and gold palette, accented with crisp white for a polished and cohesive party aesthetic that photographs beautifully. If you want to personalize further our many of our products like our custom face banner comes in six-plus color options so you can make this party perfectly match you! 

What makes someone turning 40 special to celebrate?

Turning 40 is one of the most celebrated milestone birthdays because it represents a full life chapter — confidence, experience, and knowing exactly who you are. The 40th birthday is often called the start of your best decade and deserves a celebration that matches that energy. Whether you're planning a surprise party, an intimate dinner, or a big blowout with friends and family, our 40th birthday party supplies are designed to make the guest of honor feel extraordinary from the moment guests walk in.