Color

#0d75ba

#0d75ba
hex#0d75ba
rgbrgb(13, 117, 186)
hslhsl(204, 87%, 39%)
oklchoklch(0.545 0.136 246.1)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1635

Colors that go with #0d75ba

Charcoal, Crimson and Sienna 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 →

#ba520d

#0dbaa9 · #0d1eba

#ba0d75 · #75ba0d

Split-complementary

Open in tool →

#ba0d1e · #baa90d

#a90dba · #ba520d · #1eba0d

Contrast

#0d75ba as textRatioAAAA largeAAAFix
Aaon white
4.92:1passpassfail
  • AAA: use #0a5a8f as the text (7.31:1)
Aaon black
4.27:1failpassfail
  • AA: use #0e7bc4 as the text (4.65:1)
  • AAA: use #1f9cef as the text (7.06:1)
  • AA: or shift the background to #f5f5f5 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d75ba as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0d75ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d75ba
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 #0d75ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d75ba-9cafc4-df4e5a-1f222d-e9f1f0?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