Color

#0374bf

#0374bf
hex#0374bf
rgbrgb(3, 116, 191)
hslhsl(204, 97%, 38%)
oklchoklch(0.545 0.145 247.7)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1627

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf4e03

#03bfac · #0316bf

#bf0374 · #74bf03

Split-complementary

Open in tool →

#bf0316 · #bfac03

#ac03bf · #bf4e03 · #16bf03

Contrast

#0374bf as textRatioAAAA largeAAAFix
Aaon white
4.94:1passpassfail
  • AAA: use #025b97 as the text (7.13:1)
Aaon black
4.25:1failpassfail
  • AA: use #037ac9 as the text (4.63:1)
  • AAA: use #099afb as the text (7.03:1)
  • AA: or shift the background to #f5f5f5 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0374bf 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

#0374bf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0374bf
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 #0374bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0374bf-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