Color

#3856ff

#3856ff
hex#3856ff
rgbrgb(56, 86, 255)
hslhsl(231, 100%, 61%)
oklchoklch(0.547 0.25 268.3)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1472

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffe138

#38b9ff · #7e38ff

#ff3856 · #56ff38

Split-complementary

Open in tool →

#ff7e38 · #b9ff38

#ff38b9 · #ffe138 · #38ff7e

Contrast

#3856ff as textRatioAAAA largeAAAFix
Aaon white
5.33:1passpassfail
  • AAA: use #0f33ff as the text (7.15:1)
Aaon black
3.94:1failpassfail
  • AA: use #4d67ff as the text (4.7:1)
  • AAA: use #7a8eff as the text (7.14:1)
  • AA: or shift the background to #ededed (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3856ff 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

#3856ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3856ff
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 #3856ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3856ff-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