Color

#355ade

#355ade
hex#355ade
rgbrgb(53, 90, 222)
hslhsl(227, 72%, 54%)
oklchoklch(0.524 0.205 266.9)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1334

Colors that go with #355ade

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 →

#deba35

#35aede · #6535de

#de355a · #5ade35

Split-complementary

Open in tool →

#de6535 · #aede35

#de35ae · #deba35 · #35de65

Contrast

#355ade as textRatioAAAA largeAAAFix
Aaon white
5.72:1passpassfail
  • AAA: use #2248d3 as the text (7.15:1)
Aaon black
3.67:1failpassfail
  • AA: use #4b6ce2 as the text (4.54:1)
  • AAA: use #7b93ea as the text (7.2:1)
  • AA: or shift the background to #e6e6e6 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #355ade as the background.

Brands using this color

Fonts for this mood

#355ade reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #355ade
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 #355ade and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355ade-9ca0c4-df7a4e-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