Color

#581daa

#581daa
hex#581daa
rgbrgb(88, 29, 170)
hslhsl(265, 71%, 39%)
oklchoklch(0.414 0.201 294.5)
Closest name: Intergalactic Settlement (#5b1e8b)Relative luminance 0.0586

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6faa1d

#1d29aa · #9e1daa

#aa581d · #1daa58

Split-complementary

Open in tool →

#aa9e1d · #29aa1d

#aa1d29 · #6faa1d · #1daa9e

Contrast

#581daa as textRatioAAAA largeAAAFix
Aaon white
9.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.17:1failfailfail
  • AA: use #9055e2 as the text (4.58:1)
  • AAA: use #ac81ea as the text (7.08:1)
  • AA: or shift the background to #b3b3b3 (4.61:1)
  • AAA: or shift the background to #dedede (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #581daa 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

#581daa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #581daa
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 #581daa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/581daa-b19cc4-dfd54e-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