Color

#3481bc

#3481bc
hex#3481bc
rgbrgb(52, 129, 188)
hslhsl(206, 57%, 47%)
oklchoklch(0.583 0.118 245.1)
Closest name: steelblue (#4682b4)Relative luminance 0.2006

Colors that go with #3481bc

Charcoal, Crimson and Copper 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 →

#bc6f34

#34bcb3 · #343dbc

#bc3481 · #81bc34

Split-complementary

Open in tool →

#bc343d · #bcb334

#b334bc · #bc6f34 · #3dbc34

Contrast

#3481bc as textRatioAAAA largeAAAFix
Aaon white
4.19:1failpassfail
  • AA: use #317bb4 as the text (4.54:1)
  • AAA: use #255d88 as the text (7:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.01:1passpassfail
  • AAA: use #579cd1 as the text (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 #3481bc 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

#3481bc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3481bc
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 #3481bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3481bc-9caec4-df4e56-1f212d-e9f1f1?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