Color

#353d5f

#353d5f
hex#353d5f
rgbrgb(53, 61, 95)
hslhsl(229, 28%, 29%)
oklchoklch(0.369 0.06 273.1)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0492

Colors that go with #353d5f

Sea Green, Steel Blue and Dark Olive Green 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 →

#5f5735

#35525f · #42355f

#5f353d · #3d5f35

Split-complementary

Open in tool →

#5f4235 · #525f35

#5f3552 · #5f5735 · #355f42

Contrast

#353d5f as textRatioAAAA largeAAAFix
Aaon white
10.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.98:1failfailfail
  • AA: use #6672a9 as the text (4.54:1)
  • AAA: use #8d96bf as the text (7.25:1)
  • AA: or shift the background to #ababab (4.61:1)
  • AAA: or shift the background to #d4d4d4 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #353d5f as the background.

Brands using this color

Fonts for this mood

#353d5f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #353d5f
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 #353d5f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/353d5f-9c9fc4-df7e4e-231f2d-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