Color

#0369dd

#0369dd
hex#0369dd
rgbrgb(3, 105, 221)
hslhsl(212, 97%, 44%)
oklchoklch(0.542 0.195 257.5)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1534

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dd7703

#03d6dd · #0b03dd

#dd0369 · #69dd03

Split-complementary

Open in tool →

#dd0b03 · #d6dd03

#dd03d6 · #dd7703 · #03dd0b

Contrast

#0369dd as textRatioAAAA largeAAAFix
Aaon white
5.16:1passpassfail
  • AAA: use #0353b0 as the text (7.32:1)
Aaon black
4.07:1failpassfail
  • AA: use #0470ec as the text (4.53:1)
  • AAA: use #4098fc as the text (7.11:1)
  • AA: or shift the background to #f0f0f0 (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 #0369dd as the background.

Brands using this color

Fonts for this mood

#0369dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0369dd
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 #0369dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0369dd-9caac4-df564e-1f202d-e9f1f1?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