“Legal” Web Colors Chart

The 6x6x6 Color Cube can be sliced into six 6x6 layers along any of its three axes. The tables below show all three slicings. Each axis is one of the primary colors: red, green or blue. In all three cases, the six slices have the same values for the other two colors — only the axis color varies.

The values for those other two colors are shown on the vertical and horizontal axes of the 6x6 color slices. The result is a grid showing the 36 possible combinations of those two colors. The value for the slice axis color is shown in the lower-left of each grid. Each slice, from left to right, top to bottom, has more and more of the axis color in the mix.

In any case, hover over a color square to see its (hex) value.

Note that the same 216 colors appear in all three slicings — they just in a different order!

Sliced on the Red Axis
FF       
CC       
99       
66       
33       
00       
00 00 33 66 99 CC FF
FF       
CC       
99       
66       
33       
00       
33 00 33 66 99 CC FF
FF       
CC       
99       
66       
33       
00       
66 00 33 66 99 CC FF
FF       
CC       
99       
66       
33       
00       
99 00 33 66 99 CC FF
FF       
CC       
99       
66       
33       
00       
CC 00 33 66 99 CC FF
FF       
CC       
99       
66       
33       
00       
FF 00 33 66 99 CC FF
Sliced on the Green Axis
00       
00       
00       
00       
00       
00       
00 00 33 66 99 CC FF
33       
33       
33       
33       
33       
33       
33 00 33 66 99 CC FF
66       
66       
66       
66       
66       
66       
66 00 33 66 99 CC FF
99       
99       
99       
99       
99       
99       
99 00 33 66 99 CC FF
CC       
CC       
CC       
CC       
CC       
CC       
CC 00 33 66 99 CC FF
FF       
FF       
FF       
FF       
FF       
FF       
FF 00 33 66 99 CC FF
Sliced on the Blue Axis
00       
FF       
FF       
FF       
FF       
FF       
00 00 33 66 99 CC FF
00       
FF       
FF       
FF       
FF       
FF       
33 00 33 66 99 CC FF
00       
FF       
FF       
FF       
FF       
FF       
66 00 33 66 99 CC FF
00       
FF       
FF       
FF       
FF       
FF       
99 00 33 66 99 CC FF
00       
FF       
FF       
FF       
FF       
FF       
CC 00 33 66 99 CC FF
00       
FF       
FF       
FF       
FF       
FF       
FF 00 33 66 99 CC FF