Color

#a40dc9

#a40dc9
hex#a40dc9
rgbrgb(164, 13, 201)
hslhsl(288, 88%, 42%)
oklchoklch(0.533 0.254 317.4)
Closest name: Nebula (#a104c3)Relative luminance 0.124

Colors that go with #a40dc9

Forest Green, Charcoal and Denim 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 #a40dc9

Tints & shades

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

Harmonies

Complementary

Open in tool →

#33c90d

#450dc9 · #c90d91

#c9a40d · #0dc9a4

Split-complementary

Open in tool →

#91c90d · #0dc945

#c9450d · #33c90d · #0d91c9

Contrast

#a40dc9 as textRatioAAAA largeAAAFix
Aaon white
6.04:1passpassfail
  • AAA: use #940cb6 as the text (7.03:1)
Aaon black
3.48:1failpassfail
  • AA: use #c30ff0 as the text (4.65:1)
  • AAA: use #d866f5 as the text (7.14:1)
  • AA: or shift the background to #e0e0e0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a40dc9 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

#a40dc9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a40dc9
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 #a40dc9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a40dc9-be9fc1-aacb62-2d1f2a-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