Color

#353b79

#353b79
hex#353b79
rgbrgb(53, 59, 121)
hslhsl(235, 39%, 34%)
oklchoklch(0.381 0.104 276.1)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0527

Colors that go with #353b79

Steel Blue, Blue and Crimson 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 →

#797335

#355c79 · #513579

#79353b · #3b7935

Split-complementary

Open in tool →

#795135 · #5c7935

#79355c · #797335 · #357951

Contrast

#353b79 as textRatioAAAA largeAAAFix
Aaon white
10.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #676ebc as the text (4.53:1)
  • AAA: use #8e93cd as the text (7.21:1)
  • AA: or shift the background to #adadad (4.56:1)
  • AAA: or shift the background to #d6d6d6 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #353b79 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

#353b79 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #353b79
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 #353b79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/353b79-9e9cc4-df8d4e-241f2d-e9eef1?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