Color

#3c54be

#3c54be
hex#3c54be
rgbrgb(60, 84, 190)
hslhsl(229, 52%, 49%)
oklchoklch(0.489 0.168 269.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1102

Colors that go with #3c54be

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 →

#bea63c

#3c95be · #653cbe

#be3c54 · #54be3c

Split-complementary

Open in tool →

#be653c · #95be3c

#be3c95 · #bea63c · #3cbe65

Contrast

#3c54be as textRatioAAAA largeAAAFix
Aaon white
6.55:1passpassfail
  • AAA: use #384fb2 as the text (7.17:1)
Aaon black
3.2:1failpassfail
  • AA: use #5c71cc as the text (4.69:1)
  • AAA: use #8393d8 as the text (7.13:1)
  • 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 #3c54be as the background.

Brands using this color

Fonts for this mood

#3c54be reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c54be
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 #3c54be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c54be-9c9fc4-df7e4e-231f2d-e9eef1?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