Cargo Features

[dependencies]
hsluv = { version = "0.3.1", default-features = false, features = ["std", "alloc", "libm"] }
default = std

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

std default = alloc

Enables std of num-traits

alloc std
libm

Enables libm of num-traits

Hsluv has 4 features without comments.