Color

#c31ff9

#c31ff9
hex#c31ff9
rgbrgb(195, 31, 249)
hslhsl(285, 95%, 55%)
oklchoklch(0.618 0.29 314.9)
Closest name: Flirtatious Flamingo (#cc22ff)Relative luminance 0.1942

Colors that go with #c31ff9

Olive Drab, Charcoal and Olive Green 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 →

#56f91f

#561ff9 · #f91fc3

#f9c31f · #1ff9c3

Split-complementary

Open in tool →

#c3f91f · #1ff956

#f9561f · #56f91f · #1fc3f9

Contrast

#c31ff9 as textRatioAAAA largeAAAFix
Aaon white
4.3:1failpassfail
  • AA: use #bf10f9 as the text (4.51:1)
  • AAA: use #8f05bd as the text (7.18:1)
  • AA: or shift the background to #0d0d0d (4.52:1)
Aaon black
4.88:1passpassfail
  • AAA: use #d565fb as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c31ff9 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#c31ff9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c31ff9
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 #c31ff9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c31ff9-bc9fc1-afcb62-2d1f2b-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