Color

#538197

#538197
hex#538197
rgbrgb(83, 129, 151)
hslhsl(199, 29%, 46%)
oklchoklch(0.579 0.061 229.8)
Closest name: Citadel (#6a7f8b)Relative luminance 0.1977

Colors that go with #538197

Charcoal, Copper 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 #538197

Tints & shades

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

Harmonies

Complementary

Open in tool →

#976953

#53978b · #536097

#975382 · #829753

Split-complementary

Open in tool →

#975360 · #978b53

#8b5397 · #976953 · #609753

Contrast

#538197 as textRatioAAAA largeAAAFix
Aaon white
4.24:1failpassfail
  • AA: use #507c91 as the text (4.53:1)
  • AAA: use #3c5d6d as the text (7.05:1)
  • AA: or shift the background to #0f0f0f (4.52:1)
Aaon black
4.95:1passpassfail
  • AAA: use #729db1 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #538197 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 #538197
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 #538197 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/538197-9cb3c4-df4e66-1f232d-e9f1f0?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