Color

#540359

#540359
hex#540359
rgbrgb(84, 3, 89)
hslhsl(297, 93%, 18%)
oklchoklch(0.319 0.145 325.4)
Closest name: Cloak and Dagger (#550055)Relative luminance 0.0267

Colors that go with #540359

Forest Green, Teal and Olive Green 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.

Real palettes that use #540359

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#075903

#2a0359 · #590332

#595403 · #035954

Split-complementary

Open in tool →

#325903 · #03592a

#592a03 · #075903 · #033259

Contrast

#540359 as textRatioAAAA largeAAAFix
Aaon white
13.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #ce08d9 as the text (4.66:1)
  • AAA: use #f049f8 as the text (7.01:1)
  • AA: or shift the background to #949494 (4.51:1)
  • AAA: or shift the background to #bababa (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #540359 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

#540359 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #540359
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 #540359 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/540359-c19fbe-9acb62-2d1f28-ede9f1?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