When it comes to Kallax shelf from IKEA, it strikes me how to vary the storage space indefinitely. Shelf unit is available in different colors and designs. Here you can design exactly how you want your Kallax system, IKEA has planning tools for many of their products.
Kallax shelf unit colors are in black-brown, high gloss white, walnut effect light gray, high gloss gray and white. There are probably more colors depending on which country it is sold in, it is just the base of the shelf, then you can fill with drawers or cabinets in different colors and designs. I post some names of Tjena and Dröna boxes under certain pictures.
Dröna boxes are available in the colors, Black, White, White/Black, Dark blue, Dark gray, Patterned light green/white. Tjena storage boxes with lid are available in the colors, White, Black, Patterned yellow and patterned beige. Keep in mind that IKEA comes with 2000 new products per year, so that new colors, etc. are launched is not uncommon.
As you can see in all the pictures below, it is only the imagination that sets the limits. You can build a TV bench from kallax system, you will find some pictures of it below. You can use the Kallax shelf system as a room divider if, for example, you have children who want their "own" room. Click on the images to zoom in well.
"Breakfast Room Green is the most cheerful of all our greens, remaining lively in both bright sunlight or softer candlelight. Named after the usually east facing rooms designed for eating the first meal of the day, it is particularly beautiful in the dawn light."
"This strong architectural grey is named after the lead often used by fishermen to weight their lines. Plummett intensifies in colour in smaller spaces and has a strikingly modern feel which is conducive to minimal living."
"This mid-century modern green is a darker version of the much loved archive colour, Olive. Perfect for those who want to embrace stronger colour in the home, its sober tone creates rooms that feel calm and serene - especially when combined with soft pinks and browns." Bancha has good reviews, 84% recommend this color on Farrow & Ball's website.