RGB colors in console no longer render properly

[zombachu]

Expected behavior

On an older build of Paper this is what it looked like:

Raw terminal output: [07:12:52 INFO]: [0;38:5:59m[[0;38:5:167m![0;38:5:59m] [0;38:5:167mUnable to find a matching player for the name: [0;38:5:231mzombachu[0;38:5:167m.

Observed/Actual behavior

On a 1.20.2 build of Paper it now looks like this:

Raw terminal output: [07:12:56 INFO]: [!] Unable to find a matching player for the name: zombachu.

Steps/models to reproduce

Above command basically did this

Bukkit.getConsoleSender().sendMessage("§x§5§6§5§f§6§8[§x§e§3§4§7§3§c!§x§5§6§5§f§6§8] §x§e§3§4§7§3§cUnable to find a matching player for the name: §x§f§5§f§9§f§fzombachu§x§e§3§4§7§3§c.")

Plugin and Datapack List

ArmorStandTools, BanManager, CleanroomGenerator, CoreProtect, Multiverse-Core, Multiverse-Inventories, Multiverse-NetherPortals, *PermissionsEx, PlotSquared, ProtocolLib, SynergyCore, SynergyCreative, SynergyLobby, SynergySurvival, VanishNoPacket, VoxelSniper, WorldEdit, WorldGuard

Paper version

[07:29:56 INFO]: This server is running Paper version git-Paper-240 (MC: 1.20.2) (Implementing API version 1.20.2-R0.1-SNAPSHOT) (Git: e57af7d) You are 1 version(s) behind Download the new version at: https://papermc.io/downloads/paper Previous version: git-Paper-233 (MC: 1.20.2)

Other

In-game colors are fine

[pop4959]

The ANSI parser in Paper was recently updated, so the exact representation of certain colors may differ depending on detected terminal support. Does the old color match more closely to what it appears as in-game, or is it just different? It might help to provide a screenshot just so that it's more clear.

[zombachu]

The old color matches what It is in game. Here's a better example, sorry about that:

(and in-game for the command before)

Terminal I'm using is iTerm2, system macOS terminal has the same issue too