Color

#513762

#513762
hex#513762
rgbrgb(81, 55, 98)
hslhsl(276, 28%, 30%)
oklchoklch(0.385 0.077 311)
Closest name: Long Passionate Night (#5b365e)Relative luminance 0.0536

Colors that go with #513762

Blue, Copper and Crimson 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 →

#486237

#3b3762 · #62375e

#625137 · #376251

Split-complementary

Open in tool →

#5e6237 · #37623b

#623b37 · #486237 · #375e62

Contrast

#513762 as textRatioAAAA largeAAAFix
Aaon white
10.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #8e66a9 as the text (4.62:1)
  • AAA: use #ab8dbf as the text (7.29:1)
  • AA: or shift the background to #adadad (4.51:1)
  • AAA: or shift the background to #d9d9d9 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #513762 as the background.

Brands using this color

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

Fonts for this mood

#513762 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #513762
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 #513762 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/513762-b99cc4-bfcb62-2d1f2d-eae9f1?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