An easy way to add color to your kitchen is with artwork (prints, posters). Since you said you like yellow here is an example you could hang on the wall by the table:
Uncorked Print | Ballard Designs
You can easily spice it up by using accessories in bright colors including storage containers, tablecloths and placemats, utensil holders, dishtowels, napkins etc. If there is a Home Goods store near you, that is a great place to find affordable things. You can take them all with you when you move.