Color

#3554ac

#3554ac
hex#3554ac
rgbrgb(53, 84, 172)
hslhsl(224, 53%, 44%)
oklchoklch(0.472 0.145 266.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1008

Colors that go with #3554ac

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 →

#ac8c35

#3590ac · #5035ac

#ac3554 · #54ac35

Split-complementary

Open in tool →

#ac5035 · #90ac35

#ac3590 · #ac8c35 · #35ac50

Contrast

#3554ac as textRatioAAAA largeAAAFix
Aaon white
6.96:1passpassfail
  • AAA: use #3453a8 as the text (7.12:1)
Aaon black
3.02:1failpassfail
  • AA: use #5373ca as the text (4.67:1)
  • AAA: use #7e96d7 as the text (7.23:1)
  • AA: or shift the background to #d1d1d1 (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 #3554ac as the background.

Brands using this color

Fonts for this mood

#3554ac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3554ac
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 #3554ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3554ac-9ca2c4-df724e-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