Color

#3c65cd

#3c65cd
hex#3c65cd
rgbrgb(60, 101, 205)
hslhsl(223, 59%, 52%)
oklchoklch(0.535 0.168 265)
Closest name: God of Rain (#4466cc)Relative luminance 0.1468

Colors that go with #3c65cd

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 →

#cda43c

#3caecd · #5c3ccd

#cd3c65 · #65cd3c

Split-complementary

Open in tool →

#cd5c3c · #aecd3c

#cd3cae · #cda43c · #3ccd5c

Contrast

#3c65cd as textRatioAAAA largeAAAFix
Aaon white
5.34:1passpassfail
  • AAA: use #2d52ae as the text (7.17:1)
Aaon black
3.94:1failpassfail
  • AA: use #4d72d1 as the text (4.64:1)
  • AAA: use #7995dc as the text (7.15:1)
  • AA: or shift the background to #ededed (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c65cd as the background.

Brands using this color

Fonts for this mood

#3c65cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c65cd
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 #3c65cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c65cd-9ca3c4-df704e-211f2d-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