Color

#3967fe

#3967fe
hex#3967fe
rgbrgb(57, 103, 254)
hslhsl(226, 99%, 61%)
oklchoklch(0.576 0.23 266.1)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1773

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fed039

#39c9fe · #6e39fe

#fe3967 · #67fe39

Split-complementary

Open in tool →

#fe6e39 · #c9fe39

#fe39c9 · #fed039 · #39fe6e

Contrast

#3967fe as textRatioAAAA largeAAAFix
Aaon white
4.62:1passpassfail
  • AAA: use #013bf9 as the text (7.01:1)
Aaon black
4.55:1passpassfail
  • AAA: use #7192fe as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3967fe as the background.

Brands using this color

Fonts for this mood

#3967fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3967fe
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 #3967fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3967fe-9ca1c4-df774e-221f2d-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