1. Use a photo editing software: Many photo editing software programs, such as Adobe Photoshop, Lightroom, or GIMP, offer color tone adjustment features. These features typically allow you to adjust the hue, saturation, and lightness of specific colors in your photo, as well as the overall color balance.
2. Use a photo editing app: There are many photo editing apps available for smartphones and tablets that can be used to adjust the color tone of your photos. Some popular apps include VSCO, Snapseed, and Adobe Photoshop Express.
3. Use a camera color filter: Some cameras come with built-in color filters that can be used to modify the color tone of your photos. These filters can be either physical or digital, and can range from subtle effects to more dramatic changes.
4. Use a color grading LUT: A color grading LUT (Look-Up Table) is a file that can be applied to your photos to change their color tone. LUTs are often used by professional photographers and filmmakers to achieve specific color effects.
When modifying the color tone of your photos, it's important to be careful not to overdo it. Small adjustments can often have a big impact, so it's a good idea to start with subtle changes and see how they look before making more drastic changes.