Color

#5287d1

#5287d1
hex#5287d1
rgbrgb(82, 135, 209)
hslhsl(215, 58%, 57%)
oklchoklch(0.62 0.126 257)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2373

Colors that go with #5287d1

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 →

#d19c52

#52c6d1 · #5c52d1

#d15287 · #87d152

Split-complementary

Open in tool →

#d15c52 · #c6d152

#d152c6 · #d19c52 · #52d15c

Contrast

#5287d1 as textRatioAAAA largeAAAFix
Aaon white
3.66:1failpassfail
  • AA: use #3a76cb as the text (4.53:1)
  • AAA: use #295899 as the text (7.12:1)
  • AA: or shift the background to #1f1f1f (4.51:1)
Aaon black
5.75:1passpassfail
  • AAA: use #6a98d7 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5287d1 as the background.

Brands using this color

Fonts for this mood

#5287d1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5287d1
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 #5287d1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5287d1-9ca8c4-df5d4e-201f2d-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