Do you think the website in orange colors will have negative impact in sales?

Orange is an attention grabbing color, so if used carefully can get your attention visually. If used to much it might be overwhelming. Try using different tones and shades of the orange hue for a warm but calm site. You might also balance the orange with neutral colors like whites and greys for a more modern and slightly serious look. Blue is the complimentary color of orange so it balances it, you might use one orange color and several shades and tones of blue to create a very friendly and fun combination. Orange used correctly brings warmth it's a beautiful color just don't over due it because it can look alarming and have a negative impact.