Color

#3544f3

#3544f3
hex#3544f3
rgbrgb(53, 68, 243)
hslhsl(235, 89%, 58%)
oklchoklch(0.507 0.255 269.7)
Closest name: C64 Blue (#003aff)Relative luminance 0.1136

Colors that go with #3544f3

Charcoal, Crimson and Sea Green 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 →

#f3e335

#35a4f3 · #8435f3

#f33544 · #44f335

Split-complementary

Open in tool →

#f38435 · #a4f335

#f335a4 · #f3e335 · #35f384

Contrast

#3544f3 as textRatioAAAA largeAAAFix
Aaon white
6.42:1passpassfail
  • AAA: use #2637f2 as the text (7.21:1)
Aaon black
3.27:1failpassfail
  • AA: use #5664f5 as the text (4.54:1)
  • AAA: use #828cf8 as the text (7.06:1)
  • AA: or shift the background to #d9d9d9 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3544f3 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

#3544f3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3544f3
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 #3544f3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3544f3-9e9cc4-df8d4e-241f2d-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