Color

#537e88

#537e88
hex#537e88
rgbrgb(83, 126, 136)
hslhsl(191, 24%, 43%)
oklchoklch(0.565 0.05 213.9)
Closest name: Citadel (#6a7f8b)Relative luminance 0.1854

Colors that go with #537e88

Charcoal, Sienna and Amber 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 #537e88

Tints & shades

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

Harmonies

Complementary

Open in tool →

#885d53

#538877 · #536488

#88537e · #7e8853

Split-complementary

Open in tool →

#885364 · #887753

#775388 · #885d53 · #648853

Contrast

#537e88 as textRatioAAAA largeAAAFix
Aaon white
4.46:1failpassfail
  • AA: use #517b85 as the text (4.64:1)
  • AAA: use #3e5e65 as the text (7.01:1)
  • AA: or shift the background to #050505 (4.57:1)
Aaon black
4.71:1passpassfail
  • AAA: use #719ea8 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #537e88 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 #537e88
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 #537e88 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/537e88-a2b6be-df4e7a-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