Color

#136cb9

#136cb9
hex#136cb9
rgbrgb(19, 108, 185)
hslhsl(208, 81%, 40%)
oklchoklch(0.524 0.144 250.9)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1437

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b96013

#13b9b3 · #1319b9

#b9136c · #6cb913

Split-complementary

Open in tool →

#b91319 · #b9b313

#b313b9 · #b96013 · #19b913

Contrast

#136cb9 as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
  • AAA: use #105998 as the text (7.23:1)
Aaon black
3.87:1failpassfail
  • AA: use #1679d0 as the text (4.68:1)
  • AAA: use #3d9aeb as the text (7.02:1)
  • AA: or shift the background to #ebebeb (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #136cb9 as the background.

Brands using this color

Fonts for this mood

#136cb9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #136cb9
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #136cb9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/136cb9-9cadc4-df4e51-1f212d-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