Or Three-Character Colors, for those who insist on it.
Below is a collection of three-character RGB colours. These can be used anywhere you need a colour value in CSS.
| #000 | #003 | #006 | #009 | #00C | #00F |
| #030 | #033 | #036 | #039 | #03C | #03F |
| #060 | #063 | #066 | #069 | #06C | #06F |
| #090 | #093 | #096 | #099 | #09C | #09F |
| #0C0 | #0C3 | #0C6 | #0C9 | #0CC | #0CF |
| #0F0 | #0F3 | #0F6 | #0F9 | #0FC | #0FF |
| #300 | #303 | #306 | #309 | #30C | #30F |
| #330 | #333 | #336 | #339 | #33C | #33F |
| #360 | #363 | #366 | #369 | #36C | #36F |
| #390 | #393 | #396 | #399 | #39C | #39F |
| #3C0 | #3C3 | #3C6 | #3C9 | #3CC | #3CF |
| #3F0 | #3F3 | #3F6 | #3F9 | #3FC | #3FF |
| #600 | #603 | #606 | #609 | #60C | #60F |
| #630 | #633 | #636 | #639 | #63C | #63F |
| #660 | #663 | #666 | #669 | #66C | #66F |
| #690 | #693 | #696 | #699 | #69C | #69F |
| #6C0 | #6C3 | #6C6 | #6C9 | #6CC | #6CF |
| #6F0 | #6F3 | #6F6 | #6F9 | #6FC | #6FF |
| #900 | #903 | #906 | #909 | #90C | #90F |
| #930 | #933 | #936 | #939 | #93C | #93F |
| #960 | #963 | #966 | #969 | #96C | #96F |
| #990 | #993 | #996 | #999 | #99C | #99F |
| #9C0 | #9C3 | #9C6 | #9C9 | #9CC | #9CF |
| #9F0 | #9F3 | #9F6 | #9F9 | #9FC | #9FF |
| #C00 | #C03 | #C06 | #C09 | #C0C | #C0F |
| #C30 | #C33 | #C36 | #C39 | #C3C | #C3F |
| #C60 | #C63 | #C66 | #C69 | #C6C | #C6F |
| #C90 | #C93 | #C96 | #C99 | #C9C | #C9F |
| #CC0 | #CC3 | #CC6 | #CC9 | #CCC | #CCF |
| #CF0 | #CF3 | #CF6 | #CF9 | #CFC | #CFF |
| #F00 | #F03 | #F06 | #F09 | #F0C | #F0F |
| #F30 | #F33 | #F36 | #F39 | #F3C | #F3F |
| #F60 | #F63 | #F66 | #F69 | #F6C | #F6F |
| #F90 | #F93 | #F96 | #F99 | #F9C | #F9F |
| #FC0 | #FC3 | #FC6 | #FC9 | #FCC | #FCF |
| #FF0 | #FF3 | #FF6 | #FF9 | #FFC | #FFF |