Color

#5a71aa

#5a71aa
hex#5a71aa
rgbrgb(90, 113, 170)
hslhsl(223, 32%, 51%)
oklchoklch(0.555 0.093 266.7)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1689

Colors that go with #5a71aa

Charcoal, Sea Green and Amber 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 →

#aa935a

#5a99aa · #6b5aaa

#aa5a71 · #71aa5a

Split-complementary

Open in tool →

#aa6b5a · #99aa5a

#aa5a99 · #aa935a · #5aaa6b

Contrast

#5a71aa as textRatioAAAA largeAAAFix
Aaon white
4.8:1passpassfail
Aaon black
4.38:1failpassfail
  • AA: use #5d74ac as the text (4.56:1)
  • AAA: use #8696c1 as the text (7.15:1)
  • AA: or shift the background to #fafafa (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a71aa 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 #5a71aa
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 #5a71aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a71aa-9ca3c4-df704e-211f2d-e9eff1?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