Color from string not applying due to case sensitivity, yet no error

[Ethorbit]

Which package is this bug report for?

discord.js

Issue description

1. Make bot post embed message, but set the embed color to one of these strings in all lowercase
2. In the Discord client, the embed will appear black, instead of the color it is supposed to be.

Usually when you pass a color that's not valid, it generates an error, but for some reason the case insensitive colors pass without error and then don't apply.

Code sample

client.on("messageCreate", msg => {
    if (msg.author.bot)
        return;

    try
    {
        const embed = new EmbedBuilder();
        embed.setColor(msg.content); 
        embed.setTitle("Selected color");
        embed.setDescription(msg.content);
        msg.channel.send({embeds: [embed]});
    }  
    catch 
    {
        const embed = new EmbedBuilder();
        embed.setTitle("Incorrect color");
        embed.setDescription(`${msg.content} is not a valid color.`);
        msg.channel.send({embeds: [embed]});
    }
});

Package version

14.7.1

Node.js version

19.2.0

Operating system

Arch Linux 5.15.83-1-lts

Priority this issue should have

Medium (should be fixed soon)

Which partials do you have configured?

No Partials

Which gateway intents are you subscribing to?

Guilds, GuildMessages, MessageContent

I have tested this issue on a development release

No response

[Jiralite]

The issue lies on this line:

discord.js/packages/discord.js/src/util/Util.js

Line 480 in 6540914

color = Colors[color] ?? parseInt(color.replace('#', ''), 16);

As we already know, a lower case variant of any colour is not valid. Thus, parseInt(color.replace('#', ''), 16) is used for color instead. This is doing parseInt('b', 16) (in this case) and returns 11 - the first & only match.

I am not sure if fixing this would be major, however.