Color

#a11be4

#a11be4
hex#a11be4
rgbrgb(161, 27, 228)
hslhsl(280, 79%, 50%)
oklchoklch(0.555 0.267 309.5)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1396

Colors that go with #a11be4

Olive Drab, 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5ee41b

#3c1be4 · #e41bc3

#e4a11b · #1be4a1

Split-complementary

Open in tool →

#c3e41b · #1be43c

#e43c1b · #5ee41b · #1bc3e4

Contrast

#a11be4 as textRatioAAAA largeAAAFix
Aaon white
5.54:1passpassfail
  • AAA: use #8716c0 as the text (7.23:1)
Aaon black
3.79:1failpassfail
  • AA: use #ae3be8 as the text (4.59:1)
  • AAA: use #c572ee as the text (7.02:1)
  • AA: or shift the background to #e8e8e8 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a11be4 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

#a11be4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a11be4
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 #a11be4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a11be4-b99fc1-b8cb62-2d1f2c-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