Component colors doesn't work

[MassonNn]

I have this code:

public Component prepareName(Player p, String hex) {
        String hint = this.config.getString("name-hint");
        return miniMessage.deserialize(p.getName())
                .hoverEvent(HoverEvent.showText(miniMessage.deserialize(hint)))
                .color(TextColor.fromHexString(hex))
                .clickEvent(ClickEvent.runCommand("/playerinfo " + p.getName())
        );
    }

Where hex is a string from config (staff.1.color):

staff:
 1:
  prefix: ''
  color: '#8a8690'

But the nickname has default color in the chat:

Component message = plugin.miniMessage.deserialize(
                Objects.requireNonNull(plugin.config.getString("chat.local.text")),
                Placeholder.component("rank",
                        Component.text(rankPrefix).color(TextColor.fromHexString(color))
                        .hoverEvent(HoverEvent.showText(plugin.miniMessage.deserialize(rankHint)))
                ),
                Placeholder.component("playername", plugin.prepareName(pl, color)),
                Placeholder.component("message", e.originalMessage())
        );