Color

#573ddb

#573ddb
hex#573ddb
rgbrgb(87, 61, 219)
hslhsl(250, 69%, 55%)
oklchoklch(0.495 0.226 281.8)
Closest name: Blurple (#5539cc)Relative luminance 0.1048

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c1db3d

#3d72db · #a73ddb

#db573d · #3ddb57

Split-complementary

Open in tool →

#dba73d · #72db3d

#db3d72 · #c1db3d · #3ddba7

Contrast

#573ddb as textRatioAAAA largeAAAFix
Aaon white
6.78:1passpassfail
  • AAA: use #5439db as the text (7.03:1)
Aaon black
3.1:1failpassfail
  • AA: use #7560e2 as the text (4.53:1)
  • AAA: use #9a8bea as the text (7.26:1)
  • AA: or shift the background to #d4d4d4 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #573ddb 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

#573ddb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/573ddb-a79cc4-dfb14e-281f2d-e9ecf1?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