Color

#577d7f

#577d7f
hex#577d7f
rgbrgb(87, 125, 127)
hslhsl(183, 19%, 42%)
oklchoklch(0.562 0.043 200.1)
Closest name: Blue Blood (#6b7f81)Relative luminance 0.1823

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7f5957

#577f6d · #57697f

#7f577d · #7d7f57

Split-complementary

Open in tool →

#7f5769 · #7f6d57

#6d577f · #7f5957 · #697f57

Contrast

#577d7f as textRatioAAAA largeAAAFix
Aaon white
4.52:1passpassfail
  • AAA: use #405d5e as the text (7.13:1)
Aaon black
4.65:1passpassfail
  • AAA: use #739ea0 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #577d7f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #577d7f
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 #577d7f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/577d7f-a2b9be-d4598e-1f262d-e9f1ee?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