Color

#090cbe

#090cbe
hex#090cbe
rgbrgb(9, 12, 190)
hslhsl(239, 91%, 39%)
oklchoklch(0.37 0.246 265.2)
Closest name: mediumblue (#0000cd)Relative luminance 0.0404

Colors that go with #090cbe

Charcoal, Blue and Cornflower Blue 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 →

#bebb09

#0966be · #6009be

#be090c · #0cbe09

Split-complementary

Open in tool →

#be6009 · #66be09

#be0966 · #bebb09 · #09be60

Contrast

#090cbe as textRatioAAAA largeAAAFix
Aaon white
11.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #5e61f7 as the text (4.53:1)
  • AAA: use #8a8cf9 as the text (7.2:1)
  • AA: or shift the background to #a3a3a3 (4.61:1)
  • AAA: or shift the background to #c9c9c9 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #090cbe as the background.

Brands using this color

Fonts for this mood

#090cbe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #090cbe
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 #090cbe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/090cbe-a09cc4-df964e-251f2d-e9edf1?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