Color

#631772

#631772
hex#631772
rgbrgb(99, 23, 114)
hslhsl(290, 66%, 27%)
oklchoklch(0.376 0.155 320.3)
Closest name: Extraviolet (#661188)Relative luminance 0.0448

Colors that go with #631772

Tomato, Forest Green and Charcoal 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 →

#277217

#361772 · #721754

#726317 · #177263

Split-complementary

Open in tool →

#547217 · #177236

#723617 · #277217 · #175472

Contrast

#631772 as textRatioAAAA largeAAAFix
Aaon white
11.08:1passpasspassPasses AAA — no fix needed.
Aaon black
1.9:1failfailfail
  • AA: use #ba34d5 as the text (4.54:1)
  • AAA: use #d073e2 as the text (7.23:1)
  • AA: or shift the background to #a6a6a6 (4.55:1)
  • AAA: or shift the background to #cfcfcf (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #631772 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

#631772 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #631772
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 #631772 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/631772-bf9fc1-a6cb62-2d1f29-ece9f1?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