Color

#3a645f

#3a645f
hex#3a645f
rgbrgb(58, 100, 95)
hslhsl(173, 27%, 31%)
oklchoklch(0.471 0.048 186)
Closest name: After the Storm (#33616a)Relative luminance 0.1084

Colors that go with #3a645f

Cadet Blue, Champagne and Copper 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 #3a645f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#643a3f

#3a644a · #3a5464

#5f3a64 · #645f3a

Split-complementary

Open in tool →

#643a54 · #644a3a

#4a3a64 · #643a3f · #54643a

Contrast

#3a645f as textRatioAAAA largeAAAFix
Aaon white
6.63:1passpassfail
  • AAA: use #365e59 as the text (7.24:1)
Aaon black
3.17:1failpassfail
  • AA: use #497e78 as the text (4.54:1)
  • AAA: use #5da29a as the text (7.1:1)
  • AA: or shift the background to #d6d6d6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a645f 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

mcpConnect your agent — build around #3a645f
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 #3a645f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a645f-a2bebe-d459a3-1f292d-e9f1ec?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