Color

#b31e48

#b31e48
hex#b31e48
rgbrgb(179, 30, 72)
hslhsl(343, 71%, 41%)
oklchoklch(0.502 0.182 11.7)
Closest name: Fancy Red Wine (#b40441)Relative luminance 0.1098

Colors that go with #b31e48

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 →

#1eb389

#b31e93 · #b33e1e

#48b31e · #1e48b3

Split-complementary

Open in tool →

#1eb33e · #1e93b3

#93b31e · #1eb389 · #3e1eb3

Contrast

#b31e48 as textRatioAAAA largeAAAFix
Aaon white
6.57:1passpassfail
  • AAA: use #aa1d45 as the text (7.07:1)
Aaon black
3.2:1failpassfail
  • AA: use #dc2e5f as the text (4.6:1)
  • AAA: use #e76f91 as the text (7.08:1)
  • AA: or shift the background to #d6d6d6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b31e48 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

#b31e48 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b31e48
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 #b31e48 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b31e48-c49ca3-62cb7b-2d211f-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