Color

#b51256

#b51256
hex#b51256
rgbrgb(181, 18, 86)
hslhsl(335, 82%, 39%)
oklchoklch(0.503 0.194 4.6)
Closest name: Aztec Warrior (#bb0066)Relative luminance 0.1093

Colors that go with #b51256

Teal, Amber and Denim 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 →

#12b571

#b512a7 · #b51f12

#56b512 · #1256b5

Split-complementary

Open in tool →

#12b51f · #12a7b5

#a7b512 · #12b571 · #1f12b5

Contrast

#b51256 as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #ac1151 as the text (7.11:1)
Aaon black
3.19:1failpassfail
  • AA: use #e3166c as the text (4.6:1)
  • AAA: use #f0669f as the text (7.11:1)
  • AA: or shift the background to #d6d6d6 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b51256 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

#b51256 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b51256
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 #b51256 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b51256-c49ca8-62cb6d-2d201f-f1e9f0?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