Color

#a91c0f

#a91c0f
hex#a91c0f
rgbrgb(169, 28, 15)
hslhsl(5, 84%, 36%)
oklchoklch(0.474 0.177 30.1)
Closest name: Blood Rush (#aa2222)Relative luminance 0.093

Colors that go with #a91c0f

Teal, Goldenrod and Hunter Green 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.

Real palettes that use #a91c0f

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#0f9ca9

#a90f4f · #a9690f

#0fa91c · #1c0fa9

Split-complementary

Open in tool →

#0fa969 · #0f4fa9

#4fa90f · #0f9ca9 · #690fa9

Contrast

#a91c0f as textRatioAAAA largeAAAFix
Aaon white
7.34:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #e62514 as the text (4.64:1)
  • AAA: use #f16c5f as the text (7.05:1)
  • AA: or shift the background to #cccccc (4.57:1)
  • AAA: or shift the background to #fafafa (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a91c0f 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

#a91c0f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a91c0f
live endpoint

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.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #a91c0f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a91c0f-c4a49c-62cba1-2d261f-f1e9ec?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md