Color

#376ffb

#376ffb
hex#376ffb
rgbrgb(55, 111, 251)
hslhsl(223, 96%, 60%)
oklchoklch(0.587 0.217 264.2)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1915

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbc337

#37d0fb · #6237fb

#fb376f · #6ffb37

Split-complementary

Open in tool →

#fb6237 · #d0fb37

#fb37d0 · #fbc337 · #37fb62

Contrast

#376ffb as textRatioAAAA largeAAAFix
Aaon white
4.35:1failpassfail
  • AA: use #326bfb as the text (4.53:1)
  • AAA: use #0543e1 as the text (7.25:1)
  • AA: or shift the background to #0a0a0a (4.55:1)
Aaon black
4.83:1passpassfail
  • AAA: use #6993fc as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #376ffb 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

#376ffb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #376ffb
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 #376ffb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/376ffb-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