Color

#5b9bcd

#5b9bcd
hex#5b9bcd
rgbrgb(91, 155, 205)
hslhsl(206, 53%, 58%)
oklchoklch(0.667 0.1 243.6)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.3007

Colors that go with #5b9bcd

Charcoal, Peru 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 →

#cd8c5b

#5bcdc5 · #5b63cd

#cd5b9b · #9bcd5b

Split-complementary

Open in tool →

#cd5b63 · #cdc55b

#c55bcd · #cd8c5b · #63cd5b

Contrast

#5b9bcd as textRatioAAAA largeAAAFix
Aaon white
2.99:1failfailfail
  • AA: use #367bb0 as the text (4.55:1)
  • AAA: use #295d85 as the text (7:1)
  • AA: or shift the background to #2e2e2e (4.54:1)
  • AAA: or shift the background to #000000 (7.01:1)
Aaon black
7.01:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b9bcd 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

#5b9bcd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b9bcd
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 #5b9bcd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b9bcd-9caec4-df4e56-1f212d-e9f1f1?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