Scarf: Under the Sea Shell Scarf ($20) 

From Left, Sunglasses: Kate Spade Tortoise Sunnies ($158) Ring: KORS Slice Ring ($95) Bracelet: 3-Row Beaded Bracelet ($71) Handbag: Malababa Medium Bag ($325) Shoes: Cole Haan Ballet Flat ($198) Dress: Tara Jarmon Sheath ($330)

From Right, Earrings: Lucky Brand Hoops ($25) Bracelet: VC Textured Bangle ($58) Bag: Brahmin Hobo ($295) Shoes: J.CREW Miri Pump ($198) Jacket: Wallis White Jacket ($78) Top: Contrast Shell Top ($59) Skirt: Reiss Pencil Skirt ($160)

For Casual Monday.  A simple sheath, structured flats and a scarf is an outfit for not-too-casual spring days.  And if you’re not sure how busy your day will be, you can bring a navy blazer just in case.

I chose this white Tara Jarmon dress for the crisp fabric and the clean, structured shape.  If you need something less expensive, this $139 Ralph Lauren dress is a great substitute.  Petite?  Try this Banana Republic dress.  Plus size?  I like this Tahari ASL sheath with the split neckline.

The accessories help bring in some color and make the look professional.  I love the look of turquoise and gold with the pinky-coral color of the scarf, so I chose this bracelet.  (I also found this inexpensive alternative.) I added a sleek bag (I also like this messenger satchel) and some open-toe ballet flats.

For the makeup, I would choose a bright pink blush like Bobbi Brown nectar and a glossy lip.  For the hair, I would wear it up in a messy updo fastened at the back of the head.

For the Office.  Wearing black in warm weather months can be tricky.  Here, I paired a black pencil with a printed top in a summery shade of pink and a white blazer.  It lightens up the skirt a bit.

I like the shape of this white blazer.  The lapel is the good width, and I always like a one-button blazer.  Need a petite option? Try this Halogen blazer.  Plus size?  Give this Jones of New York blazer a look.

As for the accessories, these open-work hoops are versatile and adorable.  A bit boho, a bit chic.  And I chose this bangle for the light color and the textured material.  If you’d like something a bit sleeker, try this woven cuff or this hammered silver cuff from Nest.

Let’s talk about these shoes for a moment.  They’re a great height, but they have no foot bed padding.  So if you want to buy them, I recommend it, but don’t forget the insole.

For the hair, I would wear it up, lightly teased in a bun or french twist.  For the makeup, I would wear black eyeliner, some pink blush and a slightly deeper pink lip balm.