How many total colors and which color systems are included in ArKicolors?
ArKicolors (/arkicolors) contains 585 architectural colors across four international systems: RAL Classic (216 colors), NCS — Natural Color System (162 colors), Pantone Interior Selection (144 colors), and Le Corbusier Architectural Polychromy (63 historical colors from the 1931 and 1959 collections).
How are the 216 RAL Classic colors distributed across the 9 RAL families in ArKicolors?
In ArKicolors (arkicolorsRalData.js), the 216 RAL Classic colors are organized into 9 official numeric families: 1xxx Yellows (33 colors), 2xxx Oranges (13 colors), 3xxx Reds (25 colors), 4xxx Violets (12 colors), 5xxx Blues (25 colors), 6xxx Greens (36 colors), 7xxx Greys (38 colors), 8xxx Browns (20 colors), and 9xxx Whites & Blacks (14 colors).
What technical color values are displayed for each swatch (for example RAL 5002)?
For every color across all four systems, ArKicolors displays the system identifier, official code, descriptive name, sRGB hexadecimal code (HEX), RGB triplet (0–255), and process print approximation (CMYK %). For example, RAL 5002 (Ultramarine Blue) displays HEX #00387A, RGB 0 · 56 · 122, and CMYK 100 · 54 · 0 · 52.
How does the comparative View D work on desktop versus mobile screens?
On desktop viewports, View D presents a side-by-side 4-column matrix comparing RAL Classic, NCS, Pantone, and Le Corbusier across 9 horizontal chromatic family rows (Yellow, Orange, Red, Violet, Blue, Green, Grey, Brown, and White/Black), displaying up to 12 swatches per cell. On mobile viewports (< 768px), the interface adapts into a compact system selector bar (RAL | NCS | Pantone | LC), a 9-dot chromatic family selector, and a 3-column swatch grid that opens a full-screen detail sheet on tap.
How do I build and export a custom architectural palette in CSV or HEX format?
Clicking "+ Palette" on any swatch adds it to the slide-out Palette Drawer, which holds up to 12 colors from any mix of RAL, NCS, Pantone, and Le Corbusier. Inside the drawer, "Copy all HEX" copies all selected HEX values separated by commas, "Export CSV" downloads an arkicolors-palette.csv spreadsheet containing System, Code, Name, HEX, RGB, and CMYK columns, and "Share URL" copies the current page link to your clipboard.
When should architects use HEX/RGB/CMYK values versus official RAL, NCS, Pantone, or Le Corbusier codes?
HEX and RGB values are intended for 3D rendering engines (V-Ray, Corona, Lumion, D5), BIM models (Revit, Archicad), CAD presentations, and web moodboards, while CMYK values support printed architectural boards. For physical paint manufacturing, powder coating, facade cladding, and site execution, architects must always specify the official RAL, NCS, Pantone, or Le Corbusier code and verify samples against physical manufacturer fan decks under real lighting conditions.
Can I compare RAL Classic, NCS, Pantone, and Le Corbusier shades within the same color family?
Yes. ArKicolors maps all 585 colors into 9 unified chromatic families (Yellow, Orange, Red, Violet, Blue, Green, Grey, Brown, and White/Black). Switching to the 4-System Comparative View lets you inspect how industrial coatings (RAL), architectural wall paints (NCS), interior textiles/finishes (Pantone), and modernist polychromy shades (Le Corbusier) align within the same hue family.
Who developed ArKicolors and is it free to use?
ArKicolors is developed and maintained by ARKITECNA / DGJ Architects (Trieste, Italy · Bali, Indonesia · Hong Kong · Dubai, UAE) as a free online specification reference for architects, interior designers, and project developers worldwide.