Color

#3653ab

#3653ab
hex#3653ab
rgbrgb(54, 83, 171)
hslhsl(225, 52%, 44%)
oklchoklch(0.47 0.145 267)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0991

Colors that go with #3653ab

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 →

#ab8d36

#368dab · #5336ab

#ab3653 · #53ab36

Split-complementary

Open in tool →

#ab5336 · #8dab36

#ab368d · #ab8d36 · #36ab53

Contrast

#3653ab as textRatioAAAA largeAAAFix
Aaon white
7.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #5472c9 as the text (4.63:1)
  • AAA: use #7f95d7 as the text (7.18:1)
  • AA: or shift the background to #cfcfcf (4.52:1)
  • AAA: or shift the background to #ffffff (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3653ab as the background.

Brands using this color

Fonts for this mood

#3653ab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3653ab
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 #3653ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3653ab-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