Color

#535c74

#535c74
hex#535c74
rgbrgb(83, 92, 116)
hslhsl(224, 17%, 39%)
oklchoklch(0.476 0.04 268.8)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1075

Colors that go with #535c74

Sea Green, Steel Blue and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#746b53

#536c74 · #5a5374

#74535c · #5c7453

Split-complementary

Open in tool →

#745a53 · #6c7453

#74536c · #746b53 · #53745a

Contrast

#535c74 as textRatioAAAA largeAAAFix
Aaon white
6.66:1passpassfail
  • AAA: use #4e576e as the text (7.21:1)
Aaon black
3.15:1failpassfail
  • AA: use #6a7595 as the text (4.59:1)
  • AAA: use #8e96af as the text (7.13:1)
  • AA: or shift the background to #d6d6d6 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #535c74 as the background.

Brands using this color

mcpConnect your agent — build around #535c74
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 #535c74 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/535c74-9ca2c4-df724e-221f2d-e9eff1?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