Color

#831ab7

#831ab7
hex#831ab7
rgbrgb(131, 26, 183)
hslhsl(280, 75%, 41%)
oklchoklch(0.478 0.223 310.2)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0898

Colors that go with #831ab7

Denim, Forest 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.

Real palettes that use #831ab7

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4eb71a

#341ab7 · #b71a9d

#b7831a · #1ab783

Split-complementary

Open in tool →

#9db71a · #1ab734

#b7341a · #4eb71a · #1a9db7

Contrast

#831ab7 as textRatioAAAA largeAAAFix
Aaon white
7.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #ad3fe4 as the text (4.61:1)
  • AAA: use #c475eb as the text (7.09:1)
  • AA: or shift the background to #c9c9c9 (4.53:1)
  • AAA: or shift the background to #f7f7f7 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #831ab7 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

#831ab7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #831ab7
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 #831ab7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/831ab7-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