Color

#5b8bd2

#5b8bd2
hex#5b8bd2
rgbrgb(91, 139, 210)
hslhsl(216, 57%, 59%)
oklchoklch(0.634 0.12 258)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2534

Colors that go with #5b8bd2

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 →

#d2a25b

#5bc6d2 · #675bd2

#d25b8b · #8bd25b

Split-complementary

Open in tool →

#d2675b · #c6d25b

#d25bc6 · #d2a25b · #5bd267

Contrast

#5b8bd2 as textRatioAAAA largeAAAFix
Aaon white
3.46:1failpassfail
  • AA: use #3b74c9 as the text (4.64:1)
  • AAA: use #2b589c as the text (7.05:1)
  • AA: or shift the background to #212121 (4.65:1)
Aaon black
6.07:1passpassfail
  • AAA: use #6f99d8 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b8bd2 as the background.

Brands using this color

Fonts for this mood

#5b8bd2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b8bd2
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 #5b8bd2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b8bd2-9ca7c4-df5f4e-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