Color

#623bab

#623bab
hex#623bab
rgbrgb(98, 59, 171)
hslhsl(261, 49%, 45%)
oklchoklch(0.461 0.17 294.8)
Closest name: rebeccapurple (#663399)Relative luminance 0.0866

Colors that go with #623bab

Charcoal, Royal Blue and Sea Green 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 →

#84ab3b

#3b4bab · #9a3bab

#ab623b · #3bab62

Split-complementary

Open in tool →

#ab9a3b · #4bab3b

#ab3b4b · #84ab3b · #3bab9a

Contrast

#623bab as textRatioAAAA largeAAAFix
Aaon white
7.68:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #8763ca as the text (4.67:1)
  • AAA: use #a489d7 as the text (7.14:1)
  • AA: or shift the background to #c7c7c7 (4.55:1)
  • AAA: or shift the background to #f5f5f5 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #623bab 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

#623bab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #623bab
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 #623bab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623bab-af9cc4-dfcb4e-2a1f2d-e9eaf1?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