Color

#540f62

#540f62
hex#540f62
rgbrgb(84, 15, 98)
hslhsl(290, 73%, 22%)
oklchoklch(0.333 0.142 320)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0311

Colors that go with #540f62

Tomato, Forest Green 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 →

#1d610f

#2a0f61 · #610f46

#61530f · #0f6153

Split-complementary

Open in tool →

#46610f · #0f612a

#612a0f · #1d610f · #0f4661

Contrast

#540f62 as textRatioAAAA largeAAAFix
Aaon white
12.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #bf27dd as the text (4.55:1)
  • AAA: use #d46de8 as the text (7.15:1)
  • AA: or shift the background to #999999 (4.55:1)
  • AAA: or shift the background to #bfbfbf (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #540f62 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

#540f62 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #540f62
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 #540f62 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/540f62-bf9fc1-a6cb62-2d1f29-ece9f1?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