Color

#5a5775

#5a5775
hex#5a5775
rgbrgb(90, 87, 117)
hslhsl(246, 15%, 40%)
oklchoklch(0.471 0.048 289)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.1027

Colors that go with #5a5775

Sea Green, Steel Blue and Teal 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 →

#727557

#576375 · #695775

#755a57 · #57755a

Split-complementary

Open in tool →

#756957 · #637557

#755763 · #727557 · #577569

Contrast

#5a5775 as textRatioAAAA largeAAAFix
Aaon white
6.87:1passpassfail
  • AAA: use #585572 as the text (7.1:1)
Aaon black
3.05:1failpassfail
  • AA: use #767297 as the text (4.62:1)
  • AAA: use #9592af as the text (7.01:1)
  • AA: or shift the background to #d1d1d1 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a5775 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 #5a5775
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 #5a5775 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a5775-a59cc4-dfa74e-271f2d-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