Color

#3513cd

#3513cd
hex#3513cd
rgbrgb(53, 19, 205)
hslhsl(251, 83%, 44%)
oklchoklch(0.413 0.248 274.6)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0563

Colors that go with #3513cd

Charcoal, Cornflower 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 →

#abcd13

#134ecd · #9213cd

#cd3513 · #13cd35

Split-complementary

Open in tool →

#cd9213 · #4ecd13

#cd134e · #abcd13 · #13cd92

Contrast

#3513cd as textRatioAAAA largeAAAFix
Aaon white
9.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #775cf0 as the text (4.57:1)
  • AAA: use #9a86f4 as the text (7.09:1)
  • AA: or shift the background to #b0b0b0 (4.55:1)
  • AAA: or shift the background to #dbdbdb (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3513cd 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

#3513cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3513cd
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 #3513cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3513cd-a89cc4-dfb34e-281f2d-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