Color

#0348dd

#0348dd
hex#0348dd
rgbrgb(3, 72, 221)
hslhsl(221, 97%, 44%)
oklchoklch(0.478 0.233 262.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.0987

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dd9803

#03b5dd · #2b03dd

#dd0348 · #48dd03

Split-complementary

Open in tool →

#dd2b03 · #b5dd03

#dd03b5 · #dd9803 · #03dd2b

Contrast

#0348dd as textRatioAAAA largeAAAFix
Aaon white
7.06:1passpasspassPasses AAA — no fix needed.
Aaon black
2.97:1failfailfail
  • AA: use #276afc as the text (4.55:1)
  • AAA: use #6394fd as the text (7.18:1)
  • AA: or shift the background to #cfcfcf (4.53:1)
  • AAA: or shift the background to #ffffff (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0348dd as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#0348dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0348dd
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 #0348dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0348dd-9ca4c4-df6b4e-211f2d-e9eff1?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