# Color: Theory, Meaning & Contrast

**Track:** Design Foundations — Design & Human-Centered Design — proposed (25)
**Framework / surface:** design
**Level:** Beginner
**Prerequisites:** What Design Is

**In one line:** Color systems, harmony, meaning, and accessible contrast.

## Theory, aesthetics & inspiration

Every color holds three dimensions — hue, value, and chroma — the axes Albert Munsell systematized in his 1905 color order system, giving designers a measurable language beyond names. Harmony schemes like complementary, analogous, and triadic arrange hues by relationship, yet Johannes Itten's seven color contrasts and Josef Albers's "Interaction of Color" (1963) insist a color has no fixed identity: it shifts with its neighbors. Color also carries cultural meaning, so one red signals luck or warning depending on the viewer. On screens, contrast becomes an accessibility requirement, not a preference — the WCAG contrast ratio, current at version 2.2 (W3C Recommendation, 2023), mandates 4.5:1 for body text, making legibility something you verify rather than assume.

## References

- [Web Content Accessibility Guidelines (WCAG) 2.2 — W3C Recommendation](https://www.w3.org/TR/WCAG22/)
- [Munsell color system — Wikipedia](https://en.wikipedia.org/wiki/Munsell_color_system)
- [Color theory — Wikipedia](https://en.wikipedia.org/wiki/Color_theory)