Color

#375efb

#375efb
hex#375efb
rgbrgb(55, 94, 251)
hslhsl(228, 96%, 60%)
oklchoklch(0.556 0.237 267.1)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1578

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbd437

#37c0fb · #7237fb

#fb375e · #5efb37

Split-complementary

Open in tool →

#fb7237 · #c0fb37

#fb37c0 · #fbd437 · #37fb72

Contrast

#375efb as textRatioAAAA largeAAAFix
Aaon white
5.05:1passpassfail
Aaon black
4.16:1failpassfail
  • AA: use #4166fb as the text (4.52:1)
  • AAA: use #738efc as the text (7:1)
  • AA: or shift the background to #f2f2f2 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #375efb as the background.

Brands using this color

Fonts for this mood

#375efb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375efb
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 #375efb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375efb-9c9fc4-df7c4e-231f2d-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