Color

#623fab

#623fab
hex#623fab
rgbrgb(98, 63, 171)
hslhsl(259, 46%, 46%)
oklchoklch(0.467 0.165 294)
Closest name: rebeccapurple (#663399)Relative luminance 0.0909

Tints & shades

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

Harmonies

Complementary

Open in tool →

#89ab3f

#3f53ab · #973fab

#ab623f · #3fab62

Split-complementary

Open in tool →

#ab973f · #53ab3f

#ab3f53 · #89ab3f · #3fab97

Contrast

#623fab as textRatioAAAA largeAAAFix
Aaon white
7.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.82:1failfailfail
  • AA: use #8263c5 as the text (4.54:1)
  • AAA: use #a38cd4 as the text (7.26:1)
  • AA: or shift the background to #cccccc (4.64:1)
  • AAA: or shift the background to #fafafa (7.14:1)

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

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

mcpConnect your agent — build around #623fab
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #623fab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623fab-ad9cc4-dfc74e-2a1f2d-e9ebf1?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