Named color
All Systems Red
#b30103rgb(179, 1, 3)hsl(359, 99%, 35%)oklch(0.482 0.197 28.9)All Systems Red on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 5 public brands that use it and the palettes it appears in.
Colors that go with All Systems Red
Royal Blue, Steel Blue and Teal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with All Systems Red — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of All Systems Red: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite All Systems Red on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with All Systems Red in 5 real palettes, including Maple and Ember, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with All Systems Red: 4 real palettes, including MLB's brand system and Behance's brand system, as the accent.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to All Systems Red in 4 real palettes, including Olive Grove and Cider, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with All Systems Red: 11 real palettes, including Campbell's's brand system and State Farm's brand system, as the accent.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for All Systems Red: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use All Systems Red
Tints & shades
Harmonies
Contrast
| All Systems Red as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.19:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.92:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with All Systems Red as the background.
Brands using this color
Fonts for this mood
All Systems Red reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #b30103 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/b30103-c4a09c-62cb96-2d251f-f1e9ed?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md