Color

#136eb9

#136eb9
hex#136eb9
rgbrgb(19, 110, 185)
hslhsl(207, 81%, 40%)
oklchoklch(0.529 0.141 250)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1479

Colors that go with #136eb9

Charcoal, Crimson 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 →

#b95e13

#13b9b0 · #131cb9

#b9136e · #6eb913

Split-complementary

Open in tool →

#b9131c · #b9b013

#b013b9 · #b95e13 · #1cb913

Contrast

#136eb9 as textRatioAAAA largeAAAFix
Aaon white
5.3:1passpassfail
  • AAA: use #105b98 as the text (7.07:1)
Aaon black
3.96:1failpassfail
  • AA: use #1579cb as the text (4.63:1)
  • AAA: use #3d9deb as the text (7.22:1)
  • AA: or shift the background to #ededed (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #136eb9 as the background.

Brands using this color

Fonts for this mood

#136eb9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #136eb9
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 #136eb9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/136eb9-9cadc4-df4e53-1f212d-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