Color

#63259d

#63259d
hex#63259d
rgbrgb(99, 37, 157)
hslhsl(271, 62%, 38%)
oklchoklch(0.423 0.182 302.6)
Closest name: rebeccapurple (#663399)Relative luminance 0.0641

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5f9d25

#27259d · #9d259b

#9d6325 · #259d63

Split-complementary

Open in tool →

#9b9d25 · #259d27

#9d2725 · #5f9d25 · #259b9d

Contrast

#63259d as textRatioAAAA largeAAAFix
Aaon white
9.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.28:1failfailfail
  • AA: use #9956d7 as the text (4.67:1)
  • AAA: use #b27fe1 as the text (7.02:1)
  • AA: or shift the background to #b8b8b8 (4.64:1)
  • AAA: or shift the background to #e3e3e3 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #63259d as the background.

Brands using this color

Fonts for this mood

#63259d reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #63259d
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 #63259d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/63259d-b59cc4-c7cb62-2c1f2d-eae9f1?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