Color

#9181e4

#9181e4
hex#9181e4
rgbrgb(145, 129, 228)
hslhsl(250, 65%, 70%)
oklchoklch(0.66 0.144 289.3)
Closest name: Perrywinkle (#8f8ce7)Relative luminance 0.2732

Colors that go with #9181e4

Charcoal, Amber and Blue 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 →

#d4e481

#81a2e4 · #c381e4

#e49181 · #81e491

Split-complementary

Open in tool →

#e4c381 · #a2e481

#e481a2 · #d4e481 · #81e4c3

Contrast

#9181e4 as textRatioAAAA largeAAAFix
Aaon white
3.25:1failpassfail
  • AA: use #7863de as the text (4.53:1)
  • AAA: use #5339d5 as the text (7.21:1)
  • AA: or shift the background to #262626 (4.66:1)
Aaon black
6.46:1passpassfail
  • AAA: use #9989e6 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #9181e4 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

#9181e4 reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #9181e4
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 #9181e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9181e4-a79cc4-dfb14e-281f2d-e9ecf1?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