Color

#5119fa

#5119fa
hex#5119fa
rgbrgb(81, 25, 250)
hslhsl(255, 96%, 54%)
oklchoklch(0.489 0.285 278.8)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0935

Colors that go with #5119fa

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 →

#c2fa19

#1951fa · #c219fa

#fa5119 · #19fa51

Split-complementary

Open in tool →

#fac219 · #51fa19

#fa1951 · #c2fa19 · #19fac2

Contrast

#5119fa as textRatioAAAA largeAAAFix
Aaon white
7.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #7f55fc as the text (4.61:1)
  • AAA: use #a182fc as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.56:1)
  • AAA: or shift the background to #fafafa (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 #5119fa as the background.

Brands using this color

Fonts for this mood

#5119fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5119fa
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 #5119fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5119fa-ab9cc4-dfbd4e-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