Color

#5a91af

#5a91af
hex#5a91af
rgbrgb(90, 145, 175)
hslhsl(201, 35%, 52%)
oklchoklch(0.63 0.074 233.5)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2552

Colors that go with #5a91af

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 →

#af785a

#5aafa3 · #5a67af

#af5a91 · #91af5a

Split-complementary

Open in tool →

#af5a67 · #afa35a

#a35aaf · #af785a · #67af5a

Contrast

#5a91af as textRatioAAAA largeAAAFix
Aaon white
3.44:1failpassfail
  • AA: use #497c97 as the text (4.55:1)
  • AAA: use #375d72 as the text (7.07:1)
  • AA: or shift the background to #242424 (4.51:1)
Aaon black
6.1:1passpassfail
  • AAA: use #6b9db8 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a91af 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

#5a91af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a91af
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 #5a91af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a91af-9cb1c4-df4e62-1f222d-e9f1f0?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