Color

#651b74

#651b74
hex#651b74
rgbrgb(101, 27, 116)
hslhsl(290, 62%, 28%)
oklchoklch(0.384 0.153 320.3)
Closest name: Extraviolet (#661188)Relative luminance 0.0481

Colors that go with #651b74

Forest Green, Charcoal and Tomato 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 →

#2a741b

#391b74 · #741b56

#74651b · #1b7465

Split-complementary

Open in tool →

#56741b · #1b7439

#74391b · #2a741b · #1b5674

Contrast

#651b74 as textRatioAAAA largeAAAFix
Aaon white
10.7:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #b739d0 as the text (4.51:1)
  • AAA: use #cc73de as the text (7.07:1)
  • AA: or shift the background to #a8a8a8 (4.5:1)
  • AAA: or shift the background to #d1d1d1 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #651b74 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

#651b74 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #651b74
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 #651b74 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/651b74-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