Color

#345abc

#345abc
hex#345abc
rgbrgb(52, 90, 188)
hslhsl(223, 57%, 47%)
oklchoklch(0.496 0.161 265.1)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1167

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bc9534

#349fbc · #5134bc

#bc345a · #5abc34

Split-complementary

Open in tool →

#bc5134 · #9fbc34

#bc349f · #bc9534 · #34bc51

Contrast

#345abc as textRatioAAAA largeAAAFix
Aaon white
6.3:1passpassfail
  • AAA: use #2f53ac as the text (7.11:1)
Aaon black
3.33:1failpassfail
  • AA: use #4b70ce as the text (4.51:1)
  • AAA: use #7b96db as the text (7.23:1)
  • AA: or shift the background to #dbdbdb (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #345abc as the background.

Brands using this color

Fonts for this mood

#345abc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #345abc
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 #345abc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/345abc-9ca3c4-df704e-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