Color

#3564ac

#3564ac
hex#3564ac
rgbrgb(53, 100, 172)
hslhsl(216, 53%, 44%)
oklchoklch(0.507 0.126 258.7)
Closest name: Denim (#1560bd)Relative luminance 0.1285

Colors that go with #3564ac

Charcoal, Sea Green and Sienna 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 →

#ac7c35

#35a0ac · #4135ac

#ac3564 · #64ac35

Split-complementary

Open in tool →

#ac4135 · #a0ac35

#ac35a0 · #ac7c35 · #35ac41

Contrast

#3564ac as textRatioAAAA largeAAAFix
Aaon white
5.88:1passpassfail
  • AAA: use #2e5794 as the text (7.22:1)
Aaon black
3.57:1failpassfail
  • AA: use #4075c4 as the text (4.56:1)
  • AAA: use #6f97d3 as the text (7.04:1)
  • AA: or shift the background to #e3e3e3 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3564ac as the background.

Brands using this color

Fonts for this mood

#3564ac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3564ac
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 #3564ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3564ac-9ca7c4-df5f4e-201f2d-e9f0f1?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