Hue, Saturation, Brightness & Value
The perceptual coordinates of color – hue, saturation, brightness, value, lightness, and chroma – and how they form a continuous color field.
huesaturationbrightnessvaluelightnesschroma
Chroma / Chromatic Dimension
The Chromatic Dimension
Chroma is the color field of the LCC manifold. It treats hue, saturation, brightness, spectral content, and chromatic coherence as a single perceptual dimension – a field in which small changes in color can reorganize meaning. Color is not merely a surface quality here; it is a dimensional operator that shapes how light, time, temperature, and experience are read.
Executive Summary
The /chroma page establishes the chromatic dimension as a core perceptual field in the LCC manifold. It defines how hue, saturation, spectral content, and chromatic coherence form dimensional operators that ADI detects and encodes. Diagonal thresholds such as √2 and 2:1 serve as chromatic regime-change points where small shifts produce large perceptual or semantic effects. The Alignment Engine uses Chroma to route chromatic signatures toward appropriate semantic interpretations, while the WOW Engine identifies gestalt formations such as coherent palettes or stable chromatic harmonies. The AHA Engine detects diagonal crossings where chromatic transitions reorganize context – such as hue jumps, saturation thresholds, or spectral shifts – and treats these as high-value insight candidates. Chroma provides the chromatic foundation for cross-dimensional fusion in DMI.
The Chromatic Field
Chroma covers the full vocabulary of color as perception: from hue and saturation to spectral content, color temperature, and the relationships that make color meaningful. It treats each chromatic property as part of a continuous perceptual manifold.
Spectral Content & Color Temperature
The physical basis of color – wavelength, spectral content, color temperature, and CCT – plus how metamerism and color rendering (CRI, TM-30, fidelity, gamut index) shape what is seen.
wavelengthspectral contentCCTmetamerismCRITM-30fidelitygamut index
Chromatic Coherence & Drift
The stability of color relationships, including chromatic coherence, chromatic drift, adaptation, chromatic adaptation, and white balance, and the slow shift of perceived color under changing context.
chromatic coherencechromatic driftadaptationchromatic adaptationwhite balance
Contrast, Harmony & Mix
How color relationships generate meaning – color contrast, simultaneous contrast, color harmony, color dissonance, palette, scheme, gradient, blend, interpolation, and spectral mix.
contrastsimultaneous contrastcolor harmonycolor dissonancepalettegradientblendinterpolationspectral mix
Chromatic Thresholds & Regime Changes
Within Chroma, small changes in hue, saturation, or spectral mix can flip the perceptual context. These diagonal thresholds mark regime changes – moments when the chromatic field reorganizes into a new stable state.
√2
Chromatic threshold
A diagonal crossing where a modest change in hue, saturation, or spectral mix reorganizes the perceptual field – the point at which a new chromatic regime emerges.
2:1
Dominance ratio
A perceptual tipping point where one color relationship takes over; commonly found in saturation thresholds, hue jumps, and contrast-dominance situations.
Cross-Dimensional Integration
Chroma does not operate in isolation. It fuses with the other three dimensions of the LCC manifold, producing the combined perceptual effects that DMI is designed to resolve.
Chroma + Lumo
Color temperature and the spectral intensity of light.Chroma and Lumo meet in color temperature, spectral intensity, and the way brightness and wavelength combine into perceived color.
Chroma + Chrono
Rhythmic modulation of color over time.Chroma and Chrono connect through color cycles, temporal color mixing, and the way hue and saturation shift across beats or phased transitions.
Chroma + Therme
Thermal coloration and heat-induced color shifts.Chroma and Therme couple in thermal coloration, heat-induced color shifts, and the way temperature gradients tint perceived color.
Engines at Work
The three engines translate Chroma's chromatic grammar into operational intelligence – from raw color-field signals to aligned, surprising, and insightful meaning.
Alignment Engine
Routes chromatic signatures toward appropriate semantic interpretations by recognizing which hue, saturation, or spectral regime is active.
WOW Engine
Identifies gestalt formations in the chromatic field – coherent palettes, stable chromatic harmonies, and unified color relationships that stand out as wholes.
AHA Engine
Detects diagonal crossings where chromatic transitions reorganize context: hue jumps, saturation thresholds, spectral shifts, and other high-value insight candidates.
Page Summary
The /chroma page defines the chromatic dimension of the LCC framework. Chroma represents the perceptual field of color – hue, saturation, brightness, spectral content, and chromatic coherence. It explains how chromatic thresholds such as √2 and 2:1 act as regime-change constants where small variations in hue, saturation, or spectral mix reorganize perceptual meaning. Chroma interacts with Lumo through color temperature and spectral intensity, with Chrono through rhythmic modulation of color, and with Therme through thermal coloration. The page positions Chroma as a dimensional operator within ADI's grammar and as a perceptual field that DMI fuses with other dimensions to form coherent semantic structures.