Color

#570fdb

#570fdb
hex#570fdb
rgbrgb(87, 15, 219)
hslhsl(261, 87%, 46%)
oklchoklch(0.455 0.258 285.2)
Closest name: Blurple (#5539cc)Relative luminance 0.0748

Tints & shades

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

Harmonies

Complementary

Open in tool →

#94db0f

#0f2edb · #bd0fdb

#db570f · #0fdb57

Split-complementary

Open in tool →

#dbbd0f · #2edb0f

#db0f2e · #94db0f · #0fdbbd

Contrast

#570fdb as textRatioAAAA largeAAAFix
Aaon white
8.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #8b53f3 as the text (4.63:1)
  • AAA: use #ab83f6 as the text (7.31:1)
  • AA: or shift the background to #bfbfbf (4.57:1)
  • AAA: or shift the background to #ebebeb (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #570fdb 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

#570fdb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #570fdb
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 #570fdb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/570fdb-af9cc4-dfcb4e-2a1f2d-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