Color

#5271b7

#5271b7
hex#5271b7
rgbrgb(82, 113, 183)
hslhsl(222, 41%, 52%)
oklchoklch(0.557 0.115 264.9)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1702

Colors that go with #5271b7

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 →

#b79952

#52a3b7 · #6652b7

#b75271 · #71b752

Split-complementary

Open in tool →

#b76652 · #a3b752

#b752a3 · #b79952 · #52b766

Contrast

#5271b7 as textRatioAAAA largeAAAFix
Aaon white
4.77:1passpassfail
  • AAA: use #3e5793 as the text (7.02:1)
Aaon black
4.4:1failpassfail
  • AA: use #5673b8 as the text (4.54:1)
  • AAA: use #8197ca as the text (7.21:1)
  • AA: or shift the background to #fafafa (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5271b7 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

#5271b7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5271b7
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 #5271b7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5271b7-9ca3c4-df6e4e-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