Color

#401fff

#401fff
hex#401fff
rgbrgb(64, 31, 255)
hslhsl(249, 100%, 56%)
oklchoklch(0.487 0.292 273.4)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0929

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddff1f

#1f6dff · #b01fff

#ff401f · #1fff40

Split-complementary

Open in tool →

#ffb01f · #6dff1f

#ff1f6d · #ddff1f · #1fffb0

Contrast

#401fff as textRatioAAAA largeAAAFix
Aaon white
7.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #745cff as the text (4.72:1)
  • AAA: use #9785ff as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.58:1)
  • AAA: or shift the background to #fafafa (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #401fff 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

#401fff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401fff
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 #401fff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401fff-a79cc4-dfae4e-271f2d-e9ecf1?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