Color

#4f31fc

#4f31fc
hex#4f31fc
rgbrgb(79, 49, 252)
hslhsl(249, 97%, 59%)
oklchoklch(0.508 0.274 277)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1089

Colors that go with #4f31fc

Charcoal, Cobalt Blue and Cornflower 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddfc31

#3178fc · #b531fc

#fc4f31 · #31fc4f

Split-complementary

Open in tool →

#fcb531 · #78fc31

#fc3178 · #ddfc31 · #31fcb5

Contrast

#4f31fc as textRatioAAAA largeAAAFix
Aaon white
6.61:1passpassfail
  • AAA: use #4727fc as the text (7.09:1)
Aaon black
3.18:1failpassfail
  • AA: use #7259fc as the text (4.55:1)
  • AAA: use #9886fd as the text (7.16:1)
  • AA: or shift the background to #d6d6d6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f31fc as the background.

Brands using this color

Fonts for this mood

#4f31fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f31fc
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 #4f31fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f31fc-a79cc4-dfae4e-271f2d-e9ecf1?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