Heller Rainbow Mugs from Design Within ReachOriginally popular in 1974, these technicolor coffee mugs, designed by Massimo Vignelli for Heller, are still made with the same molds so they can match their vintage predecessors. $60 for a set of six

Architect Abigail Turin added a dose of color to her black-and-white bedroom with a Rainbow chair by Patrick Norguet for Cappellini.

This set of napkins will make your next happy hour feel downright gleeful. $20 from momastore.com.

Little Big trivet by byAMT, $20 from areaware.com.

Additions of color in the interior are minimal, but when they are included, they make a lasting impact, such as with this rainbow art piece by local artist Roi James. “Although we had commissioned the piece based on a recent show we went to, I don’t think either of us realized that it would work so well with our [colorful] cookbook display [in the dining area],” Flournoy admitted. The rug and brass side table are from West Elm, the couches from Scott+Cooner. The butterfly chairs were custom made by Robert Smith.

The basic requirements of a good stocking stuffer are: portable size, ingenuity, and of course, the fun factor. This brightly-colored universal adapter from Flight 001 satisfies all three. ($25)

Rainbow Shades lamps by Julien Renault

Paper installation (2013) For an installation for the Japanese paper manufacturer Takeo, architect Emmanuelle Moureaux suspended 840 pieces of paper in a spectrum of 100 colors.

The Gadanho family apartment in Lisbon (where they lived until the appointment at MoMA) is a renovated flat in a 20th-century building whose typology is a “late example of post-earthquake, 17th-century downtown architecture.”

"Rainbow Church" (2006-2010) located in Korea demonstrates Yoshioka's nod to the ethereal.

@sunbrella: "The new Icon collection on display at Dwell in Design. #dod2014 #nofilter"

Olafur Eliasson's "Your Rainbow Panorama."

Mille-Feuille storage series (2013) Layers of lacquered MDF in a rainbow-bright shades make up these playful cabinets, designed by Moureaux for Schönbuch.

A pleasant walk up six flights of stairs.

Tribeca Family Penthouse Front Studio principal Yen Ha renovated her family’s eighth-floor penthouse apartment in Tribeca by moving walls and tightening proportions, then applying color and pattern, evidenced by a striking floor-to-ceiling bookcase painted in a rainbow gradient.

"Your Rainbow Panorama," Olafur Eliasson, 2006-2011. Eliasson's team created a 360-degree walkway above the ARoS Aarhus Kunstmuseum in Denmark, which provides panoramic views of the surrounding city, filtered through colored glass that forms a rainbow loop.

HELLER DINNERWARE - VIGNELLI RAINBOW MUG - SET OF 6 $60.00 Designed by Massimo and Lella Vignelli for Heller in 1964, this tabletop collection is characterized by clean lines and a simple, classic aesthetic. Crafted in melamine, the pieces are durable, and light. Each piece’s precise shape enables it to be stacked easily with other pieces, making the Vignelli line a welcome addition to confined cupboards. This set of six 302 mugs presents the classic, no-frills design in a rainbow of colors. These iconic mugs are perfect for brightening up a morning cup of coffee—or an afternoon slump.

Reiko Kaneko's chair features a flock of birds in flight.

A half flight of stairs connects the main living area and the den.

The Rainbow Room.

After: The rear room on the third floor got a treatment similar to the offices on the top floor; it was split down the middle to give each child their own room, which they had a hand in designing. Piper's rainbow-themed room features Colour Tones wallpaper from Rebel Walls.

Somewhere over the rainbow

A peek inside Cato's room. The rainbow carpet is from Umbrella Amarella.

A very steep and narrow flight of stairs led to my favorite part of the room: a big bathroom tucked into the attic, with original wooden beams arching overhead.

The fundamentals of Emmanuel de Bayser’s Berlin apartment toe the line of cool, muted modern design. Yet there’s a trick at play: by adding distinct shots of color, de Bayser gives every room its own richly hued rainbow and, in doing so, creates a personal paean to the more playful side of midcentury design.

This upholstered headboard takes the form of a cheery rainbow with built-in nightstands and lighting.

A top-down view of the balcony that shows the nook on the west end nearest the kitchen, a flight of stairs that leads to the upper music room/office and a third flight of stairs that leads to the roof.

Enter Job Description Here

The Hallgrímskirkja is visible from all over. Views from the top reveal a rainbow of rooftops.

The living room houses Carly’s grandmother’s chair, which she had recovered and reupholstered in a rainbow houndstooth fabric.

Ben Allen renovated this old Victorian in London using a rainbow of colored concrete. One of the new bathrooms is cast in mossy green with an arch motif that appears throughout the home.

Roca wall tiles in an orange hue called Rainbow Azul used a long the walls and in the shower stall of this bathroom to give it sassy midcentury vibe.

A small wood-burning stove enhances the cabin’s cozy atmosphere, while the rainbow-colored ceiling helps create a whimsical setting in the middle of nature.

Custom rainbow cabinetry by designer Martine Ilana accents the kids' playroom.