Color

#3546fd

#3546fd
hex#3546fd
rgbrgb(53, 70, 253)
hslhsl(235, 98%, 60%)
oklchoklch(0.52 0.264 269.2)
Closest name: C64 Blue (#003aff)Relative luminance 0.1223

Colors that go with #3546fd

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 →

#fdec35

#35aafd · #8835fd

#fd3546 · #46fd35

Split-complementary

Open in tool →

#fd8835 · #aafd35

#fd35aa · #fdec35 · #35fd88

Contrast

#3546fd as textRatioAAAA largeAAAFix
Aaon white
6.09:1passpassfail
  • AAA: use #2133fd as the text (7.1:1)
Aaon black
3.45:1failpassfail
  • AA: use #5866fd as the text (4.73:1)
  • AAA: use #818bfe as the text (7.06:1)
  • AA: or shift the background to #dedede (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3546fd as the background.

Brands using this color

Fonts for this mood

#3546fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3546fd
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 #3546fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3546fd-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