https://unostyles.com/product/texas-tech-raider-red-guns-up-shirt/
Any dark colour of pants go with light colour shirts. So I suggest you can wear white, light blue(sky), light pink, mild yellow etc colours shirts with your dark brown pant. You can choose any one colour from these. As per my experience I have seen number of executives, officers always prefer dark colour pant and light colour shirts. White, Dark Green, Intense Voilet, Purple shirts will definitely suit for black pants (for official) though if you want to experience some color combination which gives a blossom look then you can go with Mustard color shirt with black pants (for casual) Dark grey pant is a very versatile piece of clothing and I have one in my wardrobe too. You can wear it with almost anything Hey, black color is the Texas Tech Raider Red Guns Up shirt In addition,I will do this basic. You can choose any color but if you are asking for a meeting look you can choose a light sky blue, white, basic pink color.