Color

#5a7377

#5a7377
hex#5a7377
rgbrgb(90, 115, 119)
hslhsl(188, 14%, 41%)
oklchoklch(0.537 0.03 208.3)
Closest name: Batman (#656e72)Relative luminance 0.1577

Colors that go with #5a7377

Charcoal, Amber and Champagne 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 #5a7377

Tints & shades

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

Harmonies

Complementary

Open in tool →

#775e5a

#5a776c · #5a6577

#775a73 · #73775a

Split-complementary

Open in tool →

#775a65 · #776c5a

#6c5a77 · #775e5a · #65775a

Contrast

#5a7377 as textRatioAAAA largeAAAFix
Aaon white
5.06:1passpassfail
  • AAA: use #465a5d as the text (7.29:1)
Aaon black
4.15:1failpassfail
  • AA: use #5e797d as the text (4.51:1)
  • AAA: use #7f9a9f as the text (7.03:1)
  • AA: or shift the background to #f2f2f2 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a7377 as the background.

Brands using this color

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

mcpConnect your agent — build around #5a7377
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 #5a7377 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a7377-a2b7be-df4e81-1f252d-e9f1ee?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