Color

#673fd5

#673fd5
hex#673fd5
rgbrgb(103, 63, 213)
hslhsl(256, 64%, 54%)
oklchoklch(0.506 0.215 288.4)
Closest name: Hokkaido Lavender (#7736d9)Relative luminance 0.1124

Tints & shades

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

Harmonies

Complementary

Open in tool →

#add53f

#3f62d5 · #b23fd5

#d5673f · #3fd567

Split-complementary

Open in tool →

#d5b23f · #62d53f

#d53f62 · #add53f · #3fd5b2

Contrast

#673fd5 as textRatioAAAA largeAAAFix
Aaon white
6.46:1passpassfail
  • AAA: use #6036d3 as the text (7.08:1)
Aaon black
3.25:1failpassfail
  • AA: use #8160dc as the text (4.64:1)
  • AAA: use #9f86e4 as the text (7:1)
  • AA: or shift the background to #d9d9d9 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673fd5 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

#673fd5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673fd5
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 #673fd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673fd5-ab9cc4-dfbf4e-291f2d-e9ebf1?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