Color

#573e89

#573e89
hex#573e89
rgbrgb(87, 62, 137)
hslhsl(260, 38%, 39%)
oklchoklch(0.429 0.121 296.3)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0728

Tints & shades

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

Harmonies

Complementary

Open in tool →

#70893e

#3e4a89 · #7d3e89

#89573e · #3e8957

Split-complementary

Open in tool →

#897d3e · #4a893e

#893e4a · #70893e · #3e897d

Contrast

#573e89 as textRatioAAAA largeAAAFix
Aaon white
8.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.46:1failfailfail
  • AA: use #8368bb as the text (4.66:1)
  • AAA: use #a08bcb as the text (7.05:1)
  • AA: or shift the background to #bdbdbd (4.55:1)
  • AAA: or shift the background to #ebebeb (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 #573e89 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

#573e89 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #573e89
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 #573e89 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/573e89-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