Color

#633151

#633151
hex#633151
rgbrgb(99, 49, 81)
hslhsl(322, 34%, 29%)
oklchoklch(0.39 0.084 342.7)
Closest name: Long Passionate Night (#5b365e)Relative luminance 0.0544

Colors that go with #633151

Teal, Crimson and Denim 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 #633151

Tints & shades

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

Harmonies

Complementary

Open in tool →

#316343

#5c3163 · #633138

#516331 · #315163

Split-complementary

Open in tool →

#386331 · #31635c

#635c31 · #316343 · #313863

Contrast

#633151 as textRatioAAAA largeAAAFix
Aaon white
10.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #ad588d as the text (4.56:1)
  • AAA: use #c284ac as the text (7.19:1)
  • AA: or shift the background to #b0b0b0 (4.64:1)
  • AAA: or shift the background to #d9d9d9 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #633151 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

#633151 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #633151
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 #633151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/633151-c19fb1-6ecb62-2d1f22-f0e9f1?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