Color
#5b1531
#5b1531rgb(91, 21, 49)hsl(336, 63%, 22%)oklch(0.324 0.104 0.6)Colors that go with #5b1531
Teal, Blue and Copper 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.
Teal #008080
complementaryshippedTeal sits directly opposite #5b1531 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped6 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside #5b1531, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #5b1531: 8 real palettes, including Bramble and Chipotle's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #5b1531 in 9 real palettes, including Burger King's brand system and M&M's's brand system, as the lead colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #5b1531 in 4 real palettes, including Oatmeal and Cider, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #5b1531: 7 real palettes, including Heinz's brand system and Box's brand system, as the accent.
Midnight Blue #191970
shipped4 real palettes, including Tide Pool and Gillette's brand system put Midnight Blue beside #5b1531, as that palette's text colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #5b1531: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #5b1531
Tints & shades
Harmonies
Contrast
| #5b1531 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.15:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.6:1 | 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 #5b1531 as the background.
Brands using this color
Fonts for this mood
#5b1531 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 #5b1531 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5b1531-c49ca7-62cb6e-2d201f-f1e9f0?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