These colors are apparently the color names known to X-windows. I took these names and Hex RGB values from a Website that isn't online anymore and added the actual color via the BGCOLOR (enhancement) attribute of the TABLE cell tag <TD>. This allows you to see (provided your browser supports enhanced tables) the actual color value.
Note: if your system supports only 16 or 256 colors, then your browser will probably 'fold' many of these colors into the few colors your system supports (thus you'll see lots of whites and grays). On a system with 65K or more colors each color is 'pure' and unique. Most of these are not in the "Web safe" set of colors, so use them sparingly.
Color names shown in bold caps are the "16 widely understood color names" from the HTML 3.2 documentation, and were picked as being the standard 16 colors supported with the Windows VGA palette. It is generally safer to code BGCOLOR="#00FFFF" in your HTML source than to code by color name, e.g. BGCOLOR=Aqua.
| Color name | RGB | Color |
| aliceblue | F0 F8 FF | |
| antiquewhite | FA EB D7 | |
| AQUA | 00 FF FF | |
| aquamarine | 7F FF D4 | |
| azure | F0 FF FF | |
| beige | F5 F5 DC | |
| bisque | FF E4 C4 | |
| BLACK | 00 00 00 | |
| blanchedalmond | FF EB CD | |
| BLUE | 00 00 FF | |
| blueviolet | 8A 2B E2 | |
| brown | A5 2A 2A | |
| burlywood | DE B8 87 | |
| cadetblue | 5F 9E A0 | |
| chartreuse | 7F FF 00 | |
| chocolate | D2 69 1E | |
| coral | FF 7F 50 | |
| cornflowerblue | 64 95 ED | |
| cornsilk | FF F8 DC | |
| crimson | DC 14 3C | |
| cyan | 00 FF FF | |
| darkblue | 00 00 8B | |
| darkcyan | 00 8B 8B | |
| darkgoldenrod | B8 86 0B | |
| darkgray | A9 A9 A9 | |
| darkgreen | 00 64 00 | |
| darkkhaki | BD B7 6B | |
| darkmagenta | 8B 00 8B | |
| darkolivegreen | 55 6B 2F | |
| darkorange | FF 8C 00 | |
| darkorchid | 99 32 CC | |
| darkred | 8B 00 00 | |
| darksalmon | E9 96 7A | |
| darkseagreen | 8F BC 8F | |
| darkslateblue | 48 3D 8B | |
| darkslategray | 2F 4F 4F | |
| darkturquoise | 00 CE D1 | |
| darkviolet | 94 00 D3 | |
| deeppink | FF 14 93 | |
| deepskyblue | 00 BF FF | |
| dimgray | 69 69 69 | |
| dodgerblue | 1E 90 FF | |
| firebrick | B2 22 22 | |
| floralwhite | FF FA F0 | |
| forestgreen | 22 8B 22 | |
| FUCHSIA | FF 00 FF | |
| gainsboro | DC DC DC | |
| ghostwhite | F8 F8 FF | |
| gold | FF D7 00 | |
| goldenrod | DA A5 20 | |
| GRAY | 80 80 80 | |
| GREEN | 00 80 00 | |
| greenyellow | AD FF 2F | |
| honeydew | F0 FF F0 | |
| hotpink | FF 69 B4 | |
| indianred | CD 5C 5C | |
| indigo | 4B 00 82 | |
| ivory | FF FF F0 | |
| khaki | F0 E6 8C | |
| lavender | E6 E6 FA | |
| lavenderblush | FF F0 F5 | |
| lawngreen | 7C FC 00 | |
| lemonchiffon | FF FA CD | |
| lightblue | AD D8 E6 | |
| lightcoral | F0 80 80 | |
| lightcyan | E0 FF FF | |
| lightgoldenrodyellow | FA FA D2 | |
| lightgreen | 90 EE 90 | |
| lightgrey | D3 D3 D3 | |
| lightpink | FF B6 C1 | |
| lightsalmon | FF A0 7A | |
| lightseagreen | 20 B2 AA | |
| lightskyblue | 87 CE FA | |
| lightslategray | 77 88 99 | |
| lightsteelblue | B0 C4 DE | |
| lightyellow | FF FF E0 | |
| LIME | 00 FF 00 | |
| limegreen | 32 CD 32 | |
| linen | FA F0 E6 | |
| magenta | FF 00 FF | |
| MAROON | 80 00 00 | |
| mediumaquamarine | 66 CD AA | |
| mediumblue | 00 00 CD | |
| mediumorchid | BA 55 D3 | |
| mediumpurple | 93 70 DB | |
| mediumseagreen | 3C B3 71 | |
| mediumslateblue | 7B 68 EE | |
| mediumspringgreen | 00 FA 9A | |
| mediumturquoise | 48 D1 CC | |
| mediumvioletred | C7 15 85 | |
| midnightblue | 19 19 70 | |
| mintcream | F5 FF FA | |
| mistyrose | FF E4 E1 | |
| moccasin | FF E4 B5 | |
| navajowhite | FF DE AD | |
| NAVY | 00 00 80 | |
| oldlace | FD F5 E6 | |
| OLIVE | 80 80 00 | |
| olivedrab | 6B 8E 23 | |
| orange | FF A5 00 | |
| orangered | FF 45 00 | |
| orchid | DA 70 D6 | |
| palegoldenrod | EE E8 AA | |
| palegreen | 98 FB 98 | |
| paleturquoise | AF EE EE | |
| palevioletred | DB 70 93 | |
| papayawhip | FF EF D5 | |
| peachpuff | FF DA B9 | |
| peru | CD 85 3F | |
| pink | FF C0 CB | |
| plum | DD A0 DD | |
| powderblue | B0 E0 E6 | |
| PURPLE | 80 00 80 | |
| RED | FF 00 00 | |
| rosybrown | BC 8F 8F | |
| royalblue | 41 69 E1 | |
| saddlebrown | 8B 45 13 | |
| salmon | FA 80 72 | |
| sandybrown | F4 A4 60 | |
| seagreen | 2E 8B 57 | |
| seashell | FF F5 EE | |
| sienna | A0 52 2D | |
| SILVER | C0 C0 C0 | |
| skyblue | 87 CE EB | |
| slateblue | 6A 5A CD | |
| slategray | 70 80 90 | |
| snow | FF FA FA | |
| springgreen | 00 FF 7F | |
| steelblue | 46 82 B4 | |
| tan | D2 B4 8C | |
| TEAL | 00 80 80 | |
| thistle | D8 BF D8 | |
| tomato | FF 63 47 | |
| turquoise | 40 E0 D0 | |
| violet | EE 82 EE | |
| wheat | F5 DE B3 | |
| WHITE | FF FF FF | |
| whitesmoke | F5 F5 F5 | |
| YELLOW | FF FF 00 | |
| yellowgreen | 9A CD 32 |