Match Red Cardinal's
color.

Red Cardinal is one of Toon Tone's 30 original animals. The fill color sits at hue 0°, saturation 85%, 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 Red Cardinal is sized to make that gap visible without being punishing.

If you're working through the full roster in order, Red Cardinal 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.