Color

#403181

#403181
hex#403181
rgbrgb(64, 49, 129)
hslhsl(251, 45%, 35%)
oklchoklch(0.377 0.129 287.1)
Closest name: Galactic Compass (#48357b)Relative luminance 0.0487

Tints & shades

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

Harmonies

Complementary

Open in tool →

#738131

#314b81 · #683181

#814031 · #318140

Split-complementary

Open in tool →

#816831 · #4b8131

#81314b · #738131 · #318168

Contrast

#403181 as textRatioAAAA largeAAAFix
Aaon white
10.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #7967c5 as the text (4.56:1)
  • AAA: use #998cd4 as the text (7.06:1)
  • AA: or shift the background to #ababab (4.63:1)
  • AAA: or shift the background to #d4d4d4 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #403181 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

#403181 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #403181
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 #403181 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/403181-a89cc4-dfb34e-281f2d-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