Here are some common color combinations that can be easily copy&pasted.
| White text color | Gray 50% text color | Black text color | RGB |
|---|---|---|---|
| white | white | white | #ffffff |
| grey 90% | grey 90% | grey 90% | #e6e6e6 |
| grey 80% | grey 80% | grey 80% | #cccccc |
| grey 70% | grey 70% | grey 70% | #b3b3b3 |
| grey 60% | grey 60% | grey 60% | #99999 |
| grey 50% | grey 50% | grey 50% | #7f7f7f7 |
| grey 40% | grey 40% | grey 40% | #666666 |
| grey 30% | grey 30% | grey 30% | #4c4c4c |
| grey 20% | grey 20% | grey 20% | #333333 |
| grey 10% | grey 10% | grey 10% | #191919 |
| black | black | black | #000000 |
| White background | Gray 50% background | Black background | RGB |
|---|---|---|---|
| white | white | white | #ffffff |
| grey 90% | grey 90% | grey 90% | #e6e6e6 |
| grey 80% | grey 80% | grey 80% | #cccccc |
| grey 70% | grey 70% | grey 70% | #b3b3b3 |
| grey 60% | grey 60% | grey 60% | #99999 |
| grey 50% | grey 50% | grey 50% | #7f7f7f7 |
| grey 40% | grey 40% | grey 40% | #666666 |
| grey 30% | grey 30% | grey 30% | #4c4c4c |
| grey 20% | grey 20% | grey 20% | #333333 |
| grey 10% | grey 10% | grey 10% | #191919 |
| black | black | black | #000000 |
