Color

#513efe

#513efe
hex#513efe
rgbrgb(81, 62, 254)
hslhsl(246, 99%, 62%)
oklchoklch(0.525 0.266 276.5)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1235

Colors that go with #513efe

Charcoal, Amber and 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 →

#ebfe3e

#3e8bfe · #b13efe

#fe513e · #3efe51

Split-complementary

Open in tool →

#feb13e · #8bfe3e

#fe3e8b · #ebfe3e · #3efeb1

Contrast

#513efe as textRatioAAAA largeAAAFix
Aaon white
6.05:1passpassfail
  • AAA: use #3f2afe as the text (7.06:1)
Aaon black
3.47:1failpassfail
  • AA: use #6d5dfe as the text (4.65:1)
  • AAA: use #968afe as the text (7.36:1)
  • AA: or shift the background to #e0e0e0 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #513efe as the background.

Brands using this color

Fonts for this mood

#513efe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #513efe
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 #513efe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/513efe-a59cc4-dfa74e-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