Color

#5591be

#5591be
hex#5591be
rgbrgb(85, 145, 190)
hslhsl(206, 45%, 54%)
oklchoklch(0.634 0.092 242.5)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.259

Colors that go with #5591be

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 →

#be8355

#55beb7 · #555cbe

#be5591 · #91be55

Split-complementary

Open in tool →

#be555c · #beb755

#b755be · #be8355 · #5cbe55

Contrast

#5591be as textRatioAAAA largeAAAFix
Aaon white
3.4:1failpassfail
  • AA: use #3f7aa6 as the text (4.62:1)
  • AAA: use #305c7e as the text (7.1:1)
  • AA: or shift the background to #242424 (4.57:1)
Aaon black
6.18:1passpassfail
  • AAA: use #679dc5 as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5591be 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

#5591be reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5591be
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 #5591be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5591be-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