Color

#5182bd

#5182bd
hex#5182bd
rgbrgb(81, 130, 189)
hslhsl(213, 45%, 53%)
oklchoklch(0.598 0.105 253.9)
Closest name: steelblue (#4682b4)Relative luminance 0.2139

Colors that go with #5182bd

Charcoal, Copper 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 →

#bd8d51

#51b8bd · #5751bd

#bd5182 · #82bd51

Split-complementary

Open in tool →

#bd5751 · #b8bd51

#bd51b8 · #bd8d51 · #51bd57

Contrast

#5182bd as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #4577b5 as the text (4.61:1)
  • AAA: use #345a89 as the text (7.07:1)
  • AA: or shift the background to #171717 (4.51:1)
Aaon black
5.28:1passpassfail
  • AAA: use #729aca as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5182bd 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

#5182bd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5182bd
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 #5182bd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5182bd-9ca9c4-df584e-1f202d-e9f0f1?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