Color

#3456df

#3456df
hex#3456df
rgbrgb(52, 86, 223)
hslhsl(228, 73%, 54%)
oklchoklch(0.517 0.212 267.4)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1271

Colors that go with #3456df

Charcoal, Sea Green 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.

Real palettes that use #3456df

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#dfbd34

#34acdf · #6734df

#df3456 · #56df34

Split-complementary

Open in tool →

#df6734 · #acdf34

#df34ac · #dfbd34 · #34df67

Contrast

#3456df as textRatioAAAA largeAAAFix
Aaon white
5.93:1passpassfail
  • AAA: use #2246d8 as the text (7.15:1)
Aaon black
3.54:1failpassfail
  • AA: use #4f6ce3 as the text (4.59:1)
  • AAA: use #7b91ea as the text (7.08:1)
  • AA: or shift the background to #e3e3e3 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3456df 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

#3456df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3456df
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 #3456df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3456df-9c9fc4-df7c4e-231f2d-e9eff1?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