Color

#575a75

#575a75
hex#575a75
rgbrgb(87, 90, 117)
hslhsl(234, 15%, 40%)
oklchoklch(0.476 0.044 279.6)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.1062

Colors that go with #575a75

Steel Blue, Blue and Copper lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#757257

#576975 · #635775

#75575a · #5a7557

Split-complementary

Open in tool →

#756357 · #697557

#755769 · #757257 · #577563

Contrast

#575a75 as textRatioAAAA largeAAAFix
Aaon white
6.72:1passpassfail
  • AAA: use #52556f as the text (7.27:1)
Aaon black
3.12:1failpassfail
  • AA: use #6f7395 as the text (4.56:1)
  • AAA: use #9295af as the text (7.14:1)
  • AA: or shift the background to #d4d4d4 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #575a75 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 #575a75
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #575a75 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/575a75-9d9cc4-df8a4e-241f2d-e9eef1?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