ボタンで背景色が変わります。
| black | green | yellow | red | blue | white | 戻す |
| #000000 black | #BA55D3 mediumorchid |
| #000080 navy | #BC8F8F rosybrown |
| #00008B darkblue | #BDB76B darkkhaki |
| #0000CD mediumblue | #C0C0C0 silver |
| #0000FF blue | #C71585 mediumvioletred |
| #006400 darkgreen | #CD5C5C indianred |
| #008000 green | #CD853F peru |
| #008080 teal | #D2691E chocolate |
| #008B8B darkcyan | #D2B48C tan |
| #00BFFF deepskyblue | #D3D3D3 lightgrey |
| #00CED1 darkturquoise | #D8BFD8 thistle |
| #00FA9A mediumspringgreen | #DA70D6 orchid |
| #00FF00 lime | #DAA520 goldenrod |
| #00FF7F springgreen | #DB7093 palevioletred |
| #00FFFF aqua | #DC143C crimson |
| #00FFFF cyan | #DCDCDC gainsboro |
| #191970 midnightblue | #DDA0DD plum |
| #1E90FF dodgerblue | #DEB887 burlywood |
| #20B2AA lightseagreen | #E0FFFF lightcyan |
| #228B22 forestgreen | #E6E6FA lavender |
| #2E8B57 seagreen | #E9967A darksalmon |
| #2F4F4F darkslategray | #EE82EE violet |
| #32CD32 limegreen | #EEE8AA palegoldenrod |
| #3CB371 mediumseagreen | #F08080 lightcoral |
| #40E0D0 turquoise | #F0E68C khaki |
| #4169E1 royalblue | #F0F8FF aliceblue |
| #4682B4 steelblue | #F0FFF0 honeydew |
| #483D8B darkslateblue | #F0FFFF azure |
| #48D1CC mediumturquoise | #F4A460 sandybrown |
| #4B0082 indigo | #F5DEB3 wheat |
| #556B2F darkolivegreen | #F5F5DC beige |
| #5F9EA0 cadetblue | #F5F5F5 whitesmoke |
| #6495ED cornflowerblue | #F5FFFA mintcream |
| #66CDAA mediumaquamarine | #F8F8FF ghostwhite |
| #696969 dimgray | #FA8072 salmon |
| #6A5ACD slateblue | #FAEBD7 antiquewhite |
| #6B8E23 olivedrab | #FAF0E6 linen |
| #708090 slategray | #FAFAD2 lightgoldenrodyellow |
| #778899 lightslategray | #FDF5E6 oldlace |
| #7B68EE mediumslateblue | #FF0000 red |
| #7CFC00 lawngreen | #FF00FF fuchsia |
| #7FFF00 chartreuse | #FF00FF magenta |
| #7FFFD4 aquamarine | #FF1493 deeppink |
| #800000 maroon | #FF4500 orangered |
| #800080 purple | #FF6347 tomato |
| #808000 olive | #FF69B4 hotpink |
| #808080 gray | #FF7F50 coral |
| #87CEEB skyblue | #FF8C00 darkorange |
| #87CEFA lightskyblue | #FFA07A lightsalmon |
| #8A2BE2 blueviolet | #FFB6C1 orange |
| #8B0000 darkred | #FFB6C1 lightpink |
| #8B008B darkmagenta | #FFC0CB pink |
| #8B4513 saddlebrown | #FFD700 gold |
| #8FBC8F darkseagreen | #FFDAB9 peachpuff |
| #90EE90 lightgreen | #FFDEAD navajowhite |
| #9370DB mediumpurple | #FFE4B5 moccasin |
| #9400D3 darkviolet | #FFE4C4 bisque |
| #98FB98 palegreen | #FFE4E1 mistyrose |
| #9932CC darkorchid | #FFEBCD blanchedalmond |
| #9ACD32 yellowgreen | #FFEFD5 papayawhip |
| #A0522D sienna | #FFF0F5 lavenderblush |
| #A52A2A brown | #FFF5EE seashell |
| #A9A9A9 darkgray | #FFF8DC cornsilk |
| #ADD8E6 lightblue | #FFFACD lemonchiffon |
| #ADFF2F greenyellow | #FFFAF0 floralwhite |
| #AFEEEE paleturquoise | #FFFAFA snow |
| #B0C4DE lightsteelblue | #FFFF00 yellow |
| #B0E0E6 powderblue | #FFFFE0 lightyellow |
| #B22222 firebrick | #FFFFF0 ivory |
| #B8860B darkgoldenrod | #FFFFFF white |


