Color

#511174

#511174
hex#511174
rgbrgb(81, 17, 116)
hslhsl(279, 74%, 26%)
oklchoklch(0.345 0.156 309.4)
Closest name: indigo (#4b0082)Relative luminance 0.0341

Colors that go with #511174

Tomato, 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 →

#347311

#201173 · #731165

#735111 · #117351

Split-complementary

Open in tool →

#657311 · #117320

#732011 · #347311 · #116573

Contrast

#511174 as textRatioAAAA largeAAAFix
Aaon white
12.48:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #aa40e2 as the text (4.54:1)
  • AAA: use #c175ea as the text (7:1)
  • AA: or shift the background to #9c9c9c (4.55:1)
  • AAA: or shift the background to #c2c2c2 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #511174 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

#511174 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511174
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 #511174 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511174-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