Match Ruby Bot's
color.

Ruby Bot is one of Toon Tone's 30 original robots. The fill color sits at hue 350°, saturation 90%, brightness 80% — a vivid red that's easy to misjudge under cool screen lighting.

What makes this character matter for color training isn't just the hex value. It's the gap between what you remember after the preview and what your slider actually produces. That gap is what Delta-E measures, and Ruby Bot is sized to make that gap visible without being punishing.

If you're working through the full roster in order, Ruby Bot pairs well with the next character in its hue family — they share lighting cues but diverge on saturation. Use this one to build your color-memory baseline, then test it on the harder ones.