Color

#840dc5

#840dc5
hex#840dc5
rgbrgb(132, 13, 197)
hslhsl(279, 88%, 41%)
oklchoklch(0.485 0.242 307.3)
Closest name: Lilac Spring (#8822cc)Relative luminance 0.0922

Colors that go with #840dc5

Denim, Olive 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 →

#4dc50d

#280dc5 · #c50da9

#c5840d · #0dc584

Split-complementary

Open in tool →

#a9c50d · #0dc528

#c5280d · #4dc50d · #0da9c5

Contrast

#840dc5 as textRatioAAAA largeAAAFix
Aaon white
7.38:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #ae31f2 as the text (4.52:1)
  • AAA: use #c76ff6 as the text (7.03:1)
  • AA: or shift the background to #cccccc (4.6:1)
  • AAA: or shift the background to #fafafa (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #840dc5 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

#840dc5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #840dc5
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 #840dc5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/840dc5-b99fc1-b9cb62-2d1f2c-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