Color

#3a595f

#3a595f
hex#3a595f
rgbrgb(58, 89, 95)
hslhsl(190, 24%, 30%)
oklchoklch(0.442 0.038 211)
Closest name: Arctic Nights (#345c61)Relative luminance 0.0887

Colors that go with #3a595f

Sienna, Blue and Cadet 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.

Real palettes that use #3a595f

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#5f403a

#3a5f53 · #3a465f

#5f3a59 · #595f3a

Split-complementary

Open in tool →

#5f3a46 · #5f533a

#533a5f · #5f403a · #465f3a

Contrast

#3a595f as textRatioAAAA largeAAAFix
Aaon white
7.57:1passpasspassPasses AAA — no fix needed.
Aaon black
2.77:1failfailfail
  • AA: use #517c85 as the text (4.57:1)
  • AAA: use #719fa8 as the text (7.23:1)
  • AA: or shift the background to #c9c9c9 (4.57:1)
  • AAA: or shift the background to #f7f7f7 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a595f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#3a595f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a595f
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 #3a595f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a595f-a2b6be-df4e7c-1f252d-e9f1ef?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