Color

#134bcd

#134bcd
hex#134bcd
rgbrgb(19, 75, 205)
hslhsl(222, 83%, 44%)
oklchoklch(0.47 0.209 263.2)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0958

Colors that go with #134bcd

Crimson, Medium Sea Green and Midnight 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 #134bcd

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd9513

#13a8cd · #3813cd

#cd134b · #4bcd13

Split-complementary

Open in tool →

#cd3813 · #a8cd13

#cd13a8 · #cd9513 · #13cd38

Contrast

#134bcd as textRatioAAAA largeAAAFix
Aaon white
7.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.92:1failfailfail
  • AA: use #366dec as the text (4.56:1)
  • AAA: use #6e96f2 as the text (7.31:1)
  • AA: or shift the background to #cfcfcf (4.62:1)
  • AAA: or shift the background to #fcfcfc (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 #134bcd 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

#134bcd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #134bcd
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 #134bcd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/134bcd-9ca3c4-df6e4e-211f2d-e9eff1?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