Color

#0372aa

#0372aa
hex#0372aa
rgbrgb(3, 114, 170)
hslhsl(200, 97%, 34%)
oklchoklch(0.527 0.122 240.8)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1496

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab3b03

#03ab8f · #031fab

#ab0373 · #73ab03

Split-complementary

Open in tool →

#ab031f · #ab8f03

#8f03ab · #ab3b03 · #1fab03

Contrast

#0372aa as textRatioAAAA largeAAAFix
Aaon white
5.26:1passpassfail
  • AAA: use #025e8d as the text (7.03:1)
Aaon black
3.99:1failpassfail
  • AA: use #037dba as the text (4.65:1)
  • AAA: use #049fec as the text (7.18:1)
  • AA: or shift the background to #f0f0f0 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0372aa as the background.

Brands using this color

Fonts for this mood

#0372aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0372aa
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 #0372aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0372aa-9cb2c4-df4e64-1f232d-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