Color

#b4315f

#b4315f
hex#b4315f
rgbrgb(180, 49, 95)
hslhsl(339, 57%, 45%)
oklchoklch(0.525 0.17 4)
Closest name: Amore (#ae2f48)Relative luminance 0.1273

Colors that go with #b4315f

Steel Blue, 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 →

#31b486

#b431a1 · #b44531

#5fb431 · #315fb4

Split-complementary

Open in tool →

#31b445 · #31a1b4

#a1b431 · #31b486 · #4531b4

Contrast

#b4315f as textRatioAAAA largeAAAFix
Aaon white
5.92:1passpassfail
  • AAA: use #a02c55 as the text (7.03:1)
Aaon black
3.55:1failpassfail
  • AA: use #cb4373 as the text (4.59:1)
  • AAA: use #da7799 as the text (7.08:1)
  • AA: or shift the background to #e3e3e3 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b4315f 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

#b4315f reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b4315f
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 #b4315f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4315f-c49ca5-62cb74-2d211f-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