Color

#0073b1

#0073b1
hex#0073b1
rgbrgb(0, 115, 177)
hslhsl(201, 100%, 35%)
oklchoklch(0.534 0.129 243.1)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1544

Colors that go with #0073b1

Charcoal, Sienna 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 →

#b33e00

#00b398 · #001bb3

#b30074 · #74b300

Split-complementary

Open in tool →

#b3001b · #b39800

#9800b3 · #b33e00 · #1bb300

Contrast

#0073b1 as textRatioAAAA largeAAAFix
Aaon white
5.14:1passpassfail
  • AAA: use #005d8f as the text (7.09:1)
Aaon black
4.09:1failpassfail
  • AA: use #007bbd as the text (4.57:1)
  • AAA: use #009cf0 as the text (7.01:1)
  • AA: or shift the background to #f0f0f0 (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 #0073b1 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0073b1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0073b1
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 #0073b1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0073b1-9cb1c4-df4e62-1f222d-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