Color

#5740bf

#5740bf
hex#5740bf
rgbrgb(87, 64, 191)
hslhsl(251, 50%, 50%)
oklchoklch(0.474 0.189 284.9)
Closest name: Blurple (#5539cc)Relative luminance 0.0945

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a8bf40

#4068bf · #9740bf

#bf5740 · #40bf57

Split-complementary

Open in tool →

#bf9740 · #68bf40

#bf4068 · #a8bf40 · #40bf97

Contrast

#5740bf as textRatioAAAA largeAAAFix
Aaon white
7.26:1passpasspassPasses AAA — no fix needed.
Aaon black
2.89:1failfailfail
  • AA: use #7966cc as the text (4.59:1)
  • AAA: use #9a8cd9 as the text (7.13:1)
  • AA: or shift the background to #cccccc (4.52:1)
  • AAA: or shift the background to #fcfcfc (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5740bf 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

#5740bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5740bf
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 #5740bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5740bf-a89cc4-dfb34e-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