Color

#543e84

#543e84
hex#543e84
rgbrgb(84, 62, 132)
hslhsl(259, 36%, 38%)
oklchoklch(0.423 0.113 295.7)
Closest name: darkslateblue (#483d8b)Relative luminance 0.07

Colors that go with #543e84

Charcoal, Steel 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 →

#6e843e

#3e4b84 · #773e84

#84543e · #3e8454

Split-complementary

Open in tool →

#84773e · #4b843e

#843e4b · #6e843e · #3e8477

Contrast

#543e84 as textRatioAAAA largeAAAFix
Aaon white
8.75:1passpasspassPasses AAA — no fix needed.
Aaon black
2.4:1failfailfail
  • AA: use #8066b7 as the text (4.5:1)
  • AAA: use #a08dc9 as the text (7.15:1)
  • AA: or shift the background to #bababa (4.51:1)
  • AAA: or shift the background to #e6e6e6 (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 #543e84 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

#543e84 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #543e84
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 #543e84 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/543e84-ad9cc4-dfc74e-2a1f2d-e9ebf1?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