Color

#3a504f

#3a504f
hex#3a504f
rgbrgb(58, 80, 79)
hslhsl(177, 16%, 27%)
oklchoklch(0.413 0.027 192.7)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.072

Colors that go with #3a504f

Blue, Blush Pink 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 #3a504f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#503a3b

#3a5044 · #3a4650

#4f3a50 · #504f3a

Split-complementary

Open in tool →

#503a46 · #50443a

#443a50 · #503a3b · #46503a

Contrast

#3a504f as textRatioAAAA largeAAAFix
Aaon white
8.61:1passpasspassPasses AAA — no fix needed.
Aaon black
2.44:1failfailfail
  • AA: use #5a7c7b as the text (4.6:1)
  • AAA: use #779c9b as the text (7.01:1)
  • AA: or shift the background to #bdbdbd (4.58:1)
  • AAA: or shift the background to #e8e8e8 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a504f as the background.

Brands using this color

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

Fonts for this mood

#3a504f reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a504f
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 #3a504f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a504f-a2bcbe-d4599b-1f282d-e9f1ed?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