Color

#4913fb

#4913fb
hex#4913fb
rgbrgb(73, 19, 251)
hslhsl(254, 97%, 53%)
oklchoklch(0.481 0.29 276.5)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0885

Colors that go with #4913fb

Charcoal, Cobalt Blue and Crimson 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 →

#c5fb13

#1351fb · #bd13fb

#fb4913 · #13fb49

Split-complementary

Open in tool →

#fbbd13 · #51fb13

#fb1351 · #c5fb13 · #13fbbd

Contrast

#4913fb as textRatioAAAA largeAAAFix
Aaon white
7.58:1passpasspassPasses AAA — no fix needed.
Aaon black
2.77:1failfailfail
  • AA: use #7b54fc as the text (4.52:1)
  • AAA: use #9e81fd as the text (7.01:1)
  • AA: or shift the background to #c9c9c9 (4.58:1)
  • AAA: or shift the background to #f7f7f7 (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 #4913fb 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

#4913fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4913fb
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 #4913fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4913fb-aa9cc4-dfbb4e-291f2d-e9ebf1?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