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For portrait headshots: cool, desaturated colours read `professional` and `trustworthy` in colour-theory research — corporate navy (#0A2540), slate grey (#475569 Tailwind Slate 600), deep teal (#134E4A Tailwind Teal 900), and warm charcoal (#1F2937 Tailwind Gray 800) all flatter most skin tones because they sit on the cool side of the colour wheel where most skin undertones look balanced. Avoid saturated warm backgrounds for headshots — a bright orange or red competes with skin warmth and makes the face look ruddy. For product shots: the rule depends on the product's dominant hue. Complementary backgrounds (the colour opposite on the colour wheel) make the product pop — a navy product against a soft amber backdrop, a red product against a desaturated teal, an orange product against a deep blue. Analogous backgrounds (colours adjacent on the wheel) read `cohesive` and `branded` rather than `attention-grabbing` — a teal product against a desaturated cyan, a red product against a coral. Both work; the choice is whether you want the product to stand out (complementary) or feel like part of a brand-system family (analogous). For the specific corporate-blue case, see `/corporate-blue-background/`.

Short answer: the export here is sRGB, which is the safest universal target for web display, social media, marketplace listings, and any downstream tool that doesn't explicitly read a wider colour profile. sRGB covers ~35% of the visible CIE 1931 colour space and is the assumed default for browsers, JPEGs without an embedded profile, and most CMS image pipelines. Wide-gamut considerations: (1) DisplayP3 (Apple's wider colour space, ~25% larger than sRGB and standard on every iPhone, iPad, and Mac display since 2015) renders saturated reds, greens, and oranges more vividly than sRGB — but a DisplayP3 export displayed on an sRGB-only screen falls back to clipped colours. For mixed-audience web work, sRGB is correct. (2) AdobeRGB (the legacy print-prep colour space, ~30% larger than sRGB) is meaningful only when the destination is a colour-managed print pipeline; ignore it for web. (3) Pantone PMS for true ink colour requires a printed Pantone swatch book reference — the sRGB approximation in the picker (e.g. PMS 286 ≈ #0033A0) is correct for screen rendering but a printer matching the on-press ink will use the official Pantone ink mix, not the sRGB hex. For brand-guide assets that span both screen and print, document both values: the sRGB hex for digital and the PMS callout for print.