color-no-invalid-hex

Disallow invalid hex colors.

a { color: #y3 }
/**        ↑
 * This hex color */

Longhand hex colors can be either 6 or 8 (with alpha channel) hexadecimal characters. And their shorthand variants are 3 and 4 characters respectively.

Options

true

The following patterns are considered problems:

a { color: #00; }

a { color: #fff1az; }

a { color: #12345aa; }

The following patterns are not considered problems:

a { color: #000; }

a { color: #000f; }

a { color: #fff1a0; }

a { color: #123450aa; }