Color

#540daf

#540daf
hex#540daf
rgbrgb(84, 13, 175)
hslhsl(266, 86%, 37%)
oklchoklch(0.403 0.216 292.6)
Closest name: Intergalactic Settlement (#5b1e8b)Relative luminance 0.0527

Tints & shades

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

Harmonies

Complementary

Open in tool →

#69af0d

#0d18af · #a50daf

#af540d · #0daf54

Split-complementary

Open in tool →

#afa50d · #18af0d

#af0d18 · #69af0d · #0dafa5

Contrast

#540daf as textRatioAAAA largeAAAFix
Aaon white
10.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #934bf1 as the text (4.52:1)
  • AAA: use #b27ff5 as the text (7.25:1)
  • AA: or shift the background to #adadad (4.56:1)
  • AAA: or shift the background to #d6d6d6 (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 #540daf 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

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

mcpConnect your agent — build around #540daf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #540daf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/540daf-b29cc4-dfd74e-2b1f2d-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