Color

#613f97

#613f97
hex#613f97
rgbrgb(97, 63, 151)
hslhsl(263, 41%, 42%)
oklchoklch(0.451 0.139 298.5)
Closest name: rebeccapurple (#663399)Relative luminance 0.0833

Tints & shades

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

Harmonies

Complementary

Open in tool →

#75973f

#3f4997 · #8d3f97

#97613f · #3f9761

Split-complementary

Open in tool →

#978d3f · #49973f

#973f49 · #75973f · #3f978d

Contrast

#613f97 as textRatioAAAA largeAAAFix
Aaon white
7.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #8764be as the text (4.6:1)
  • AAA: use #a68ccf as the text (7.27:1)
  • AA: or shift the background to #c4c4c4 (4.52:1)
  • AAA: or shift the background to #f2f2f2 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #613f97 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

#613f97 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #613f97
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 #613f97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/613f97-b09cc4-dfd04e-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