Color

#356ca7

#356ca7
hex#356ca7
rgbrgb(53, 108, 167)
hslhsl(211, 52%, 43%)
oklchoklch(0.522 0.11 252.1)
Closest name: Campanula (#3473b7)Relative luminance 0.1427

Colors that go with #356ca7

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 →

#a77035

#35a5a7 · #3735a7

#a7356c · #6ca735

Split-complementary

Open in tool →

#a73735 · #a5a735

#a735a5 · #a77035 · #35a737

Contrast

#356ca7 as textRatioAAAA largeAAAFix
Aaon white
5.45:1passpassfail
  • AAA: use #2c5a8c as the text (7.12:1)
Aaon black
3.85:1failpassfail
  • AA: use #3b78ba as the text (4.58:1)
  • AAA: use #689acf as the text (7.11:1)
  • AA: or shift the background to #ebebeb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #356ca7 as the background.

Brands using this color

Fonts for this mood

#356ca7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #356ca7
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 #356ca7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/356ca7-9cabc4-df534e-1f202d-e9f1f1?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