Color

#b81e47

#b81e47
hex#b81e47
rgbrgb(184, 30, 71)
hslhsl(344, 72%, 42%)
oklchoklch(0.511 0.187 13)
Closest name: Fancy Red Wine (#b40441)Relative luminance 0.1157

Colors that go with #b81e47

Denim, Teal and Amber 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1eb88f

#b81e94 · #b8421e

#47b81e · #1e47b8

Split-complementary

Open in tool →

#1eb842 · #1e94b8

#94b81e · #1eb88f · #421eb8

Contrast

#b81e47 as textRatioAAAA largeAAAFix
Aaon white
6.34:1passpassfail
  • AAA: use #ab1c42 as the text (7.06:1)
Aaon black
3.31:1failpassfail
  • AA: use #dd2c5b as the text (4.59:1)
  • AAA: use #e76e8f as the text (7.02:1)
  • AA: or shift the background to #dbdbdb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b81e47 as the background.

Brands using this color

Fonts for this mood

#b81e47 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b81e47
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 #b81e47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b81e47-c49ca2-62cb7c-2d221f-f1e9ef?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