The color of a solution at a high pH (basic) will depend on the pH indicator that is used. Different pH indicators have different color ranges and will change color at different pH values. For example, with phenolphthalein as the pH indicator, a high pH solution will be pink or red. With methyl orange as the pH indicator, a high pH solution will be yellow. With universal indicator, a high pH solution will be blue or purple. It is important to choose the appropriate pH indicator for your specific needs and to follow the manufacturer's instructions for using the indicator. This will ensure that you get accurate and reliable results when testing the pH of a solution.