Color

#673acf

#673acf
hex#673acf
rgbrgb(103, 58, 207)
hslhsl(258, 61%, 52%)
oklchoklch(0.494 0.214 290.1)
Closest name: Blurple (#5539cc)Relative luminance 0.1041

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a2cf3a

#3a58cf · #b13acf

#cf673a · #3acf67

Split-complementary

Open in tool →

#cfb13a · #58cf3a

#cf3a58 · #a2cf3a · #3acfb1

Contrast

#673acf as textRatioAAAA largeAAAFix
Aaon white
6.81:1passpassfail
  • AAA: use #6436ce as the text (7.09:1)
Aaon black
3.08:1failpassfail
  • AA: use #835fd8 as the text (4.59:1)
  • AAA: use #a388e2 as the text (7.18:1)
  • AA: or shift the background to #d4d4d4 (4.6:1)

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

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

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

tool url/palettes/new/673acf-ad9cc4-dfc44e-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