Color
#5b151b
#5b151brgb(91, 21, 27)hsl(355, 63%, 22%)oklch(0.318 0.101 20.5)Colors that go with #5b151b
Royal Blue, Teal and Blue 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 #5b151b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Teal #008080
complementaryshippedTeal sits directly opposite #5b151b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shippedBlue is paired with #5b151b in 6 real palettes, including Tim Hortons's brand system and Burger King's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Copper #b87333
shippedCopper is paired with #5b151b in 7 real palettes, including Bramble and Bakery, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #5b151b in 5 real palettes, including M&M's's brand system and Tim Hortons's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Dark Olive Green #556b2f
shippedDark Olive Green is paired with #5b151b in 5 real palettes, including Cider and Oatmeal, as the accent — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #5b151b in 4 real palettes, including Readymag's brand system and Cursor's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #5b151b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #5b151b
Tints & shades
Harmonies
Contrast
| #5b151b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.39:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.57:1 | 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 #5b151b as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#5b151b reads as warm, vivid, dark. 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 #5b151b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5b151b-c49e9c-62cb8f-2d241f-f1e9ee?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