Color

#570057

#570057
hex#570057
rgbrgb(87, 0, 87)
hslhsl(300, 100%, 17%)
oklchoklch(0.321 0.147 328.4)
Closest name: Cloak and Dagger (#550055)Relative luminance 0.0271

Tints & shades

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

Harmonies

Complementary

Open in tool →

#005700

#2b0057 · #57002b

#575700 · #005757

Split-complementary

Open in tool →

#2b5700 · #00572b

#572b00 · #005700 · #002b57

Contrast

#570057 as textRatioAAAA largeAAAFix
Aaon white
13.61:1passpasspassPasses AAA — no fix needed.
Aaon black
1.54:1failfailfail
  • AA: use #d100d1 as the text (4.63:1)
  • AAA: use #ff29ff as the text (7.01:1)
  • AA: or shift the background to #969696 (4.6:1)
  • AAA: or shift the background to #bababa (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #570057 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

#570057 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #570057
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 #570057 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/570057-c19fbd-95cb62-2d1f27-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