Cargo Features

[dependencies]
hex_color = { version = "3.0.0", default-features = false, features = ["std", "rand", "serde"] }
default = std

The std feature is set by default whenever hex_color is added without default-features = false somewhere in the dependency tree.

std default

Enables std and std_rng of optional rand

rand

Enables rand

serde

Enables arrayvec and serde

HexColor has 4 features without comments.