Blender is a powerful 3D modeling software that allows you to create stunning visuals and animations. One of the key elements of creating realistic 3D scenes is adding color to objects. In this tutorial, we will go through the process of coloring objects in Blender using materials and textures.

Step 1: Open Blender and create a new project or open an existing one.

Step 2: Select the object you want to color by right-clicking on it. If you want to color multiple objects, you can select them by holding down the Shift key and right-clicking on each object.

Step 3: Once you have selected the object(s), go to the 'Materials' tab in the Properties panel. If you don't see the Materials tab, make sure you are in 'Object Mode' and have the object selected.

Step 4: Click on the 'New' button to create a new material for the selected object. You can rename the material by double-clicking on its name.

Step 5: In the 'Surface' section, you can choose the base color of the material by clicking on the color swatch and selecting a color from the color picker. You can also adjust the metallic and roughness properties to create different material effects.

Step 6: If you want to add textures to the material, go to the 'Texture' tab within the Materials tab. Click on the 'New' button to create a new texture for the material.

Step 7: In the 'Type' dropdown menu, choose the type of texture you want to add, such as 'Image Texture' for adding an image to the material. You can then open an image file from your computer to use as the texture.

Step 8: Once you have added the texture, you can adjust its mapping and influence properties to control how it is applied to the material.

Step 9: If you want to add multiple materials to an object, you can do so by clicking on the '+' button next to the material list and creating a new material for the object.

Step 10: Once you are satisfied with the colors and textures of your object, you can proceed to render your scene to see the final result.

By following these steps, you can easily add color to your 3D objects in Blender and create realistic and visually appealing scenes. Experiment with different colors, materials, and textures to achieve the desired look for your 3D projects.