Color

#331daf

#331daf
hex#331daf
rgbrgb(51, 29, 175)
hslhsl(249, 72%, 40%)
oklchoklch(0.384 0.21 276.7)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0468

Tints & shades

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

Harmonies

Complementary

Open in tool →

#99af1d

#1d50af · #7c1daf

#af331d · #1daf33

Split-complementary

Open in tool →

#af7c1d · #50af1d

#af1d50 · #99af1d · #1daf7c

Contrast

#331daf as textRatioAAAA largeAAAFix
Aaon white
10.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #7561e5 as the text (4.6:1)
  • AAA: use #9789ec as the text (7.11:1)
  • AA: or shift the background to #a8a8a8 (4.56:1)
  • AAA: or shift the background to #d1d1d1 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #331daf 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

#331daf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #331daf
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 #331daf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/331daf-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