Color

#731ebe

#731ebe
hex#731ebe
rgbrgb(115, 30, 190)
hslhsl(272, 73%, 43%)
oklchoklch(0.465 0.223 301.6)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0829

Colors that go with #731ebe

Olive Green, Denim and Royal Blue 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 #731ebe

Tints & shades

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

Harmonies

Complementary

Open in tool →

#68be1e

#231ebe · #be1eb8

#be731e · #1ebe73

Split-complementary

Open in tool →

#b8be1e · #1ebe23

#be231e · #68be1e · #1eb8be

Contrast

#731ebe as textRatioAAAA largeAAAFix
Aaon white
7.9:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #9c4ae3 as the text (4.5:1)
  • AAA: use #b67bea as the text (7.01:1)
  • AA: or shift the background to #c4c4c4 (4.53:1)
  • AAA: or shift the background to #f2f2f2 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #731ebe 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

#731ebe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #731ebe
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 #731ebe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/731ebe-b69cc4-c5cb62-2d1f2d-eae9f1?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