Color

#a131fc

#a131fc
hex#a131fc
rgbrgb(161, 49, 252)
hslhsl(273, 97%, 59%)
oklchoklch(0.587 0.273 303.5)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.168

Colors that go with #a131fc

Royal Blue, Olive Drab and Charcoal 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 →

#8cfc31

#3b31fc · #fc31f2

#fca131 · #31fca1

Split-complementary

Open in tool →

#f2fc31 · #31fc3b

#fc3b31 · #8cfc31 · #31f2fc

Contrast

#a131fc as textRatioAAAA largeAAAFix
Aaon white
4.82:1passpassfail
Aaon black
4.36:1failpassfail
  • AA: use #a53bfc as the text (4.63:1)
  • AAA: use #bf72fd as the text (7.04:1)
  • AA: or shift the background to #fafafa (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a131fc 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

#a131fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a131fc
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 #a131fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a131fc-b79cc4-c4cb62-2d1f2d-eae9f1?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