Color

#3558ac

#3558ac
hex#3558ac
rgbrgb(53, 88, 172)
hslhsl(222, 53%, 44%)
oklchoklch(0.481 0.14 264.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1071

Colors that go with #3558ac

Charcoal, Sea Green and Amber 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 →

#ac8835

#3594ac · #4d35ac

#ac3558 · #58ac35

Split-complementary

Open in tool →

#ac4d35 · #94ac35

#ac3594 · #ac8835 · #35ac4d

Contrast

#3558ac as textRatioAAAA largeAAAFix
Aaon white
6.68:1passpassfail
  • AAA: use #3254a4 as the text (7.14:1)
Aaon black
3.14:1failpassfail
  • AA: use #4c71c8 as the text (4.5:1)
  • AAA: use #7a96d6 as the text (7.16:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3558ac 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

#3558ac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3558ac
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 #3558ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3558ac-9ca3c4-df6e4e-211f2d-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