What is how to make black?

To create black, you're essentially aiming to absorb as much light as possible, reflecting very little back to the viewer. Here's how to achieve this in different mediums:

• Mixing Colors (Paint, Ink, Dye): In subtractive color mixing (like with pigments), black is theoretically achieved by combining all primary colors (https://www.wikiwhat.page/kavramlar/Subtractive%20Color%20Mixing) - usually red, yellow, and blue. However, in practice, this often results in a muddy brown. A better approach is to mix a dark blue (like ultramarine) with a dark brown (like burnt umber). This combination yields a truer black. The specific ratio will vary depending on the pigments used.

• Digital Displays (RGB): On screens using the RGB color model (https://www.wikiwhat.page/kavramlar/RGB%20Color%20Model), black is created by setting all three color channels (Red, Green, Blue) to their minimum value (0). Essentially, no light is emitted from the pixel.

• Fabric Dyeing: Achieving a deep, lasting black in fabrics is a complex process. It often involves multiple dye baths, using different types of dyes with strong lightfastness. Historically, natural dyes like logwood were used, but modern synthetic dyes (https://www.wikiwhat.page/kavramlar/Synthetic%20Dyes) offer more consistent and durable results. Mordants are also crucial for helping the dye bind to the fabric.

• Black Materials: Some materials are naturally black or can be treated to become black. For instance, carbon-based materials like charcoal and graphite are black because of their ability to absorb light across a wide spectrum. Surface treatments like black anodizing (https://www.wikiwhat.page/kavramlar/Black%20Anodizing) can create a durable black finish on metals.

• Considerations for "True Black": Achieving a truly "true black" – one that absorbs almost all light – is difficult. Even the blackest materials still reflect a small amount of light. "Vantablack" (https://www.wikiwhat.page/kavramlar/Vantablack) is an example of a material designed to absorb an extremely high percentage of incident light.