Color

#b312d3

#b312d3
hex#b312d3
rgbrgb(179, 18, 211)
hslhsl(290, 84%, 45%)
oklchoklch(0.564 0.264 319.4)
Closest name: Ferocious Fuchsia (#aa00cc)Relative luminance 0.1472

Colors that go with #b312d3

Forest Green, Charcoal 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.

Real palettes that use #b312d3

Tints & shades

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

Harmonies

Complementary

Open in tool →

#32d312

#5312d3 · #d31293

#d3b312 · #12d3b3

Split-complementary

Open in tool →

#93d312 · #12d353

#d35312 · #32d312 · #1293d3

Contrast

#b312d3 as textRatioAAAA largeAAAFix
Aaon white
5.32:1passpassfail
  • AAA: use #930fae as the text (7.19:1)
Aaon black
3.94:1failpassfail
  • AA: use #c314e6 as the text (4.56:1)
  • AAA: use #da64f2 as the text (7.09:1)
  • AA: or shift the background to #ededed (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b312d3 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

#b312d3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b312d3
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 #b312d3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b312d3-bf9fc1-a6cb62-2d1f29-ece9f1?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