Color

#3456bc

#3456bc
hex#3456bc
rgbrgb(52, 86, 188)
hslhsl(225, 57%, 47%)
oklchoklch(0.488 0.165 266.4)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1102

Colors that go with #3456bc

Charcoal, Sea Green and Amber 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 →

#bc9a34

#349abc · #5634bc

#bc3456 · #56bc34

Split-complementary

Open in tool →

#bc5634 · #9abc34

#bc349a · #bc9a34 · #34bc56

Contrast

#3456bc as textRatioAAAA largeAAAFix
Aaon white
6.56:1passpassfail
  • AAA: use #3152b4 as the text (7.01:1)
Aaon black
3.2:1failpassfail
  • AA: use #4f6fcf as the text (4.51:1)
  • AAA: use #7b93db as the text (7.04:1)
  • AA: or shift the background to #d6d6d6 (4.51:1)

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

Brands using this color

Fonts for this mood

#3456bc reads as cool, modern. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/3456bc-9ca1c4-df754e-221f2d-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