Color

#355688

#355688
hex#355688
rgbrgb(53, 86, 136)
hslhsl(216, 44%, 37%)
oklchoklch(0.452 0.091 258.5)
Closest name: Assassin (#2d4f83)Relative luminance 0.0919

Colors that go with #355688

Crimson, Firebrick and Goldenrod 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.

Real palettes that use #355688

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#886735

#358088 · #3d3588

#883556 · #568835

Split-complementary

Open in tool →

#883d35 · #808835

#883580 · #886735 · #35883d

Contrast

#355688 as textRatioAAAA largeAAAFix
Aaon white
7.4:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #4b77b9 as the text (4.64:1)
  • AAA: use #7798ca as the text (7.13:1)
  • AA: or shift the background to #cccccc (4.61:1)
  • AAA: or shift the background to #fafafa (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #355688 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

#355688 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #355688
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 #355688 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355688-9ca7c4-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