Color

#543786

#543786
hex#543786
rgbrgb(84, 55, 134)
hslhsl(262, 42%, 37%)
oklchoklch(0.412 0.127 297.4)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0634

Colors that go with #543786

Charcoal, Royal Blue 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 →

#698637

#374186 · #7b3786

#865437 · #378654

Split-complementary

Open in tool →

#867b37 · #418637

#863741 · #698637 · #37867b

Contrast

#543786 as textRatioAAAA largeAAAFix
Aaon white
9.26:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #8563bf as the text (4.53:1)
  • AAA: use #a48bd0 as the text (7.18:1)
  • AA: or shift the background to #b5b5b5 (4.52:1)
  • AAA: or shift the background to #e0e0e0 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #543786 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

#543786 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #543786
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 #543786 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/543786-af9cc4-dfce4e-2a1f2d-e9eaf1?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