Color

#6431af

#6431af
hex#6431af
rgbrgb(100, 49, 175)
hslhsl(264, 56%, 44%)
oklchoklch(0.453 0.188 296.6)
Closest name: rebeccapurple (#663399)Relative luminance 0.08

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7daf31

#313eaf · #a231af

#af6431 · #31af64

Split-complementary

Open in tool →

#afa231 · #3eaf31

#af313e · #7daf31 · #31afa2

Contrast

#6431af as textRatioAAAA largeAAAFix
Aaon white
8.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #8b5cd1 as the text (4.55:1)
  • AAA: use #aa88dd as the text (7.27:1)
  • AA: or shift the background to #c2c2c2 (4.53:1)
  • AAA: or shift the background to #f0f0f0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6431af as the background.

Brands using this color

Fonts for this mood

#6431af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6431af
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 #6431af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6431af-b19cc4-dfd34e-2b1f2d-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