Color

#513786

#513786
hex#513786
rgbrgb(81, 55, 134)
hslhsl(260, 42%, 37%)
oklchoklch(0.409 0.127 295.4)
Closest name: darkslateblue (#483d8b)Relative luminance 0.062

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6c8637

#374486 · #793786

#865137 · #378651

Split-complementary

Open in tool →

#867937 · #448637

#863744 · #6c8637 · #378679

Contrast

#513786 as textRatioAAAA largeAAAFix
Aaon white
9.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #8567c1 as the text (4.71:1)
  • AAA: use #a28bd0 as the text (7.14:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #513786 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

#513786 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #513786
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 #513786 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/513786-ae9cc4-dfc94e-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