Color

#515361

#515361
hex#515361
rgbrgb(81, 83, 97)
hslhsl(232, 9%, 35%)
oklchoklch(0.446 0.023 279)
Closest name: Black Orchid (#525463)Relative luminance 0.088

Colors that go with #515361

Blue, Cadet Blue 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 #515361

Tints & shades

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

Harmonies

Complementary

Open in tool →

#615f51

#515b61 · #575161

#615153 · #536151

Split-complementary

Open in tool →

#615751 · #5b6151

#61515b · #615f51 · #516157

Contrast

#515361 as textRatioAAAA largeAAAFix
Aaon white
7.61:1passpasspassPasses AAA — no fix needed.
Aaon black
2.76:1failfailfail
  • AA: use #727588 as the text (4.62:1)
  • AAA: use #9395a5 as the text (7.08:1)
  • AA: or shift the background to #c7c7c7 (4.5:1)
  • AAA: or shift the background to #f7f7f7 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #515361 as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#515361 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #515361
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 #515361 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515361-9c9dc4-df864e-231f2d-e9eef1?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