Color

#3c52aa

#3c52aa
hex#3c52aa
rgbrgb(60, 82, 170)
hslhsl(228, 48%, 45%)
oklchoklch(0.47 0.143 269.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.099

Colors that go with #3c52aa

Charcoal, Sea Green and Steel 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa943c

#3c89aa · #5d3caa

#aa3c52 · #52aa3c

Split-complementary

Open in tool →

#aa5d3c · #89aa3c

#aa3c89 · #aa943c · #3caa5d

Contrast

#3c52aa as textRatioAAAA largeAAAFix
Aaon white
7.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #5d72c6 as the text (4.69:1)
  • AAA: use #8293d3 as the text (7.06:1)
  • AA: or shift the background to #cfcfcf (4.52:1)
  • AAA: or shift the background to #ffffff (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c52aa 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

#3c52aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c52aa
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 #3c52aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c52aa-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