Color

#139cbe

#139cbe
hex#139cbe
rgbrgb(19, 156, 190)
hslhsl(192, 82%, 41%)
oklchoklch(0.643 0.115 221.2)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2763

Colors that go with #139cbe

Charcoal, Amber and 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.

Real palettes that use #139cbe

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#be3513

#13be8b · #1346be

#be139c · #9cbe13

Split-complementary

Open in tool →

#be1346 · #be8b13

#8b13be · #be3513 · #46be13

Contrast

#139cbe as textRatioAAAA largeAAAFix
Aaon white
3.22:1failpassfail
  • AA: use #10819e as the text (4.51:1)
  • AAA: use #0b5f74 as the text (7.23:1)
  • AA: or shift the background to #292929 (4.52:1)
Aaon black
6.53:1passpassfail
  • AAA: use #14a4c8 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #139cbe as the background.

Brands using this color

Fonts for this mood

#139cbe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #139cbe
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 #139cbe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/139cbe-a2b5be-df4e77-1f242d-e9f1ef?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