Module colors 

Common color types and conversions for rendering.

This module provides convenience types and conversion functions that work across multiple render backends.

Supported formats

Format	Type	Example
RGB	(u8,u8,u8)	(255, 0, 128)
RGBA	(u8,u8,u8,u8)	(255, 0, 128, 200)
Hex	&str	"#ff0080"
Named CSS	&str	"red", "transparent"

Example

use qrcode_render::colors::hex_to_rgb;

// Works under any feature combination (no renderer backend required).
assert_eq!(hex_to_rgb("#1a1a2e"), Some((0x1a, 0x1a, 0x2e)));
assert_eq!(hex_to_rgb("invalid"), None);

Structs

CmykColor

A CMYK color with normalized 0.0..=1.0 components.

LabColor

A CIE Lab* color using a D65 white point approximation.

RgbColor

An opaque sRGB color.

Srgba

A unified sRGBA color type for use across all render backends.

Traits

ColorSpace

A color space that can convert to and from sRGB.

Functions

hex_to_rgb

Parses a #rrggbb or #rrggbbaa hex color string into RGB or RGBA bytes.

hex_to_rgba

Parses a #rrggbb or #rrggbbaa hex color string into RGBA bytes.

rgb_to_css

Converts RGB bytes to a rgb() CSS function string.

rgb_to_hex

Converts RGB bytes to a CSS hex string (e.g., "#ff0080").

rgba_to_css

Converts RGBA bytes to a rgba() CSS function string.

rgba_to_hex

Converts RGBA bytes to a CSS hex string (e.g., "#ff0080c0").