Color

#355cc0

#355cc0
hex#355cc0
rgbrgb(53, 92, 192)
hslhsl(223, 57%, 48%)
oklchoklch(0.504 0.163 265)
Closest name: Denim (#1560bd)Relative luminance 0.1222

Colors that go with #355cc0

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 →

#c09935

#35a2c0 · #5335c0

#c0355c · #5cc035

Split-complementary

Open in tool →

#c05335 · #a2c035

#c035a2 · #c09935 · #35c053

Contrast

#355cc0 as textRatioAAAA largeAAAFix
Aaon white
6.1:1passpassfail
  • AAA: use #2f53ac as the text (7.11:1)
Aaon black
3.44:1failpassfail
  • AA: use #4b70ce as the text (4.51:1)
  • AAA: use #7b96db as the text (7.23:1)
  • 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 #355cc0 as the background.

Brands using this color

Fonts for this mood

#355cc0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #355cc0
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 #355cc0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355cc0-9ca3c4-df704e-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