Color

#57375d

#57375d
hex#57375d
rgbrgb(87, 55, 93)
hslhsl(291, 26%, 29%)
oklchoklch(0.39 0.074 321.1)
Closest name: Long Passionate Night (#5b365e)Relative luminance 0.0555

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3c5d37

#44375d · #5d3750

#5d5737 · #375d57

Split-complementary

Open in tool →

#505d37 · #375d44

#5d4437 · #3c5d37 · #37505d

Contrast

#57375d as textRatioAAAA largeAAAFix
Aaon white
9.95:1passpasspassPasses AAA — no fix needed.
Aaon black
2.11:1failfailfail
  • AA: use #9962a3 as the text (4.63:1)
  • AAA: use #b288b9 as the text (7.12:1)
  • AA: or shift the background to #b0b0b0 (4.59:1)
  • AAA: or shift the background to #d9d9d9 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57375d 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

#57375d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #57375d
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 #57375d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57375d-bf9fc1-a4cb62-2d1f29-ece9f1?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