Color

#3953fe

#3953fe
hex#3953fe
rgbrgb(57, 83, 254)
hslhsl(232, 99%, 61%)
oklchoklch(0.542 0.252 268.8)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1421

Colors that go with #3953fe

Charcoal, Crimson and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fee439

#39b6fe · #8139fe

#fe3953 · #53fe39

Split-complementary

Open in tool →

#fe8139 · #b6fe39

#fe39b6 · #fee439 · #39fe81

Contrast

#3953fe as textRatioAAAA largeAAAFix
Aaon white
5.47:1passpassfail
  • AAA: use #1635fe as the text (7.06:1)
Aaon black
3.84:1failpassfail
  • AA: use #4d65fe as the text (4.61:1)
  • AAA: use #7b8dfe as the text (7.08:1)
  • AA: or shift the background to #ebebeb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3953fe as the background.

Brands using this color

Fonts for this mood

#3953fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3953fe
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3953fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3953fe-9c9dc4-df864e-231f2d-e9eef1?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