Color

#c181e4

#c181e4
hex#c181e4
rgbrgb(193, 129, 228)
hslhsl(279, 65%, 70%)
oklchoklch(0.706 0.154 312.8)
Closest name: Illicit Purple (#bf77f6)Relative luminance 0.3264

Colors that go with #c181e4

Medium Sea Green, Amber 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 →

#a4e481

#9081e4 · #e481d5

#e4c181 · #81e4c1

Split-complementary

Open in tool →

#d5e481 · #81e490

#e49081 · #a4e481 · #81d5e4

Contrast

#c181e4 as textRatioAAAA largeAAAFix
Aaon white
2.79:1failfailfail
  • AA: use #a74ad9 as the text (4.54:1)
  • AAA: use #8326b5 as the text (7.22:1)
  • AA: or shift the background to #333333 (4.53:1)
  • AAA: or shift the background to #0a0a0a (7.1:1)
Aaon black
7.53:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c181e4 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

#c181e4 reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c181e4
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 #c181e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c181e4-b99fc1-b9cb62-2d1f2c-ebe9f1?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