For any particular issue in JIRA, 3 colors like Blue, Green, and Orange is used to denote the amount of time spent on any particular issue. This information is displayed under ‘Time Tracking’ section. Each color has its own significance like;
Blue : This color is to denote the ‘Original Estimate’ i.e. the time estimate to be invested in resolving the issue. This field has been labeled as ‘Estimated’.
Orange : This color determines the time left for resolving the issue. This field has been labeled as ‘Remaining’.
Green : This color defines the actual time that has been used or say spent in resolving the issue so far. This field has been labeled as ‘logged’.
