Color

#3957fe

#3957fe
hex#3957fe
rgbrgb(57, 87, 254)
hslhsl(231, 99%, 61%)
oklchoklch(0.548 0.248 268.4)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1484

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fee039

#39b9fe · #7e39fe

#fe3957 · #57fe39

Split-complementary

Open in tool →

#fe7e39 · #b9fe39

#fe39b9 · #fee039 · #39fe7e

Contrast

#3957fe as textRatioAAAA largeAAAFix
Aaon white
5.29:1passpassfail
  • AAA: use #1034fe as the text (7.13:1)
Aaon black
3.97:1failpassfail
  • AA: use #4864fe as the text (4.53:1)
  • AAA: use #7b8ffe as the text (7.2:1)
  • AA: or shift the background to #ededed (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3957fe 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

#3957fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3957fe
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 #3957fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3957fe-9c9ec4-df834e-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