Color

#57005b

#57005b
hex#57005b
rgbrgb(87, 0, 91)
hslhsl(297, 100%, 18%)
oklchoklch(0.323 0.15 326.1)
Closest name: Cloak and Dagger (#550055)Relative luminance 0.0278

Tints & shades

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

Harmonies

Complementary

Open in tool →

#055c00

#29005c · #5c0032

#5c5700 · #005c57

Split-complementary

Open in tool →

#325c00 · #005c29

#5c2900 · #055c00 · #00325c

Contrast

#57005b as textRatioAAAA largeAAAFix
Aaon white
13.49:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #cb00d6 as the text (4.51:1)
  • AAA: use #f642ff as the text (7.14:1)
  • AA: or shift the background to #969696 (4.56:1)
  • AAA: or shift the background to #bdbdbd (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57005b 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

#57005b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #57005b
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 #57005b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57005b-c19fbe-9acb62-2d1f28-ede9f1?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