Color

#347bdf

#347bdf
hex#347bdf
rgbrgb(52, 123, 223)
hslhsl(215, 73%, 54%)
oklchoklch(0.591 0.168 257.7)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2022

Tints & shades

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

Harmonies

Complementary

Open in tool →

#df9834

#34d1df · #4234df

#df347b · #7bdf34

Split-complementary

Open in tool →

#df4234 · #d1df34

#df34d1 · #df9834 · #34df42

Contrast

#347bdf as textRatioAAAA largeAAAFix
Aaon white
4.16:1failpassfail
  • AA: use #2773dd as the text (4.58:1)
  • AAA: use #1a55a8 as the text (7.22:1)
  • AA: or shift the background to #121212 (4.5:1)
Aaon black
5.04:1passpassfail
  • AAA: use #6098e6 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #347bdf 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

#347bdf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #347bdf
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 #347bdf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/347bdf-9ca8c4-df5d4e-201f2d-e9f0f1?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