Color

#353f4b

#353f4b
hex#353f4b
rgbrgb(53, 63, 75)
hslhsl(213, 17%, 25%)
oklchoklch(0.364 0.025 253.1)
Closest name: Charcoal (#36454f)Relative luminance 0.0482

Colors that go with #353f4b

Amber, Blue and Blush Pink 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 →

#4b4135

#354a4b · #36354b

#4b353f · #3f4b35

Split-complementary

Open in tool →

#4b3635 · #4a4b35

#4b354a · #4b4135 · #354b36

Contrast

#353f4b as textRatioAAAA largeAAAFix
Aaon white
10.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #63768c as the text (4.5:1)
  • AAA: use #8897aa as the text (7.05:1)
  • AA: or shift the background to #ababab (4.66:1)
  • AAA: or shift the background to #d1d1d1 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #353f4b as the background.

Brands using this color

Fonts for this mood

#353f4b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #353f4b
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 #353f4b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/353f4b-9ca9c4-df584e-1f202d-e9f0f1?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