Color

#540576

#540576
hex#540576
rgbrgb(84, 5, 118)
hslhsl(282, 92%, 24%)
oklchoklch(0.344 0.168 311.2)
Closest name: indigo (#4b0082)Relative luminance 0.033

Colors that go with #540576

Forest Green, Charcoal and Tomato 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 →

#277605

#1b0576 · #76055f

#765405 · #057654

Split-complementary

Open in tool →

#5f7605 · #05761b

#761b05 · #277605 · #055f76

Contrast

#540576 as textRatioAAAA largeAAAFix
Aaon white
12.65:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #b623f6 as the text (4.56:1)
  • AAA: use #cf6cf9 as the text (7.17:1)
  • AA: or shift the background to #9c9c9c (4.61:1)
  • AAA: or shift the background to #c2c2c2 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #540576 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

#540576 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #540576
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 #540576 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/540576-ba9fc1-b4cb62-2d1f2b-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