Color

#353e55

#353e55
hex#353e55
rgbrgb(53, 62, 85)
hslhsl(223, 23%, 27%)
oklchoklch(0.366 0.042 267.8)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0486

Colors that go with #353e55

Dark Olive Green, Sea Green and Steel Blue 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 →

#554c35

#354e55 · #3c3555

#55353e · #3e5535

Split-complementary

Open in tool →

#553c35 · #4e5535

#55354e · #554c35 · #35553c

Contrast

#353e55 as textRatioAAAA largeAAAFix
Aaon white
10.65:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #65769f as the text (4.65:1)
  • AAA: use #8b97b6 as the text (7.2:1)
  • AA: or shift the background to #ababab (4.64:1)
  • AAA: or shift the background to #d4d4d4 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #353e55 as the background.

Brands using this color

Fonts for this mood

#353e55 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #353e55
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 #353e55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/353e55-9ca3c4-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