Color

#674eca

#674eca
hex#674eca
rgbrgb(103, 78, 202)
hslhsl(252, 54%, 55%)
oklchoklch(0.519 0.184 287.5)
Closest name: slateblue (#6a5acd)Relative luminance 0.126

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b1ca4e

#4e73ca · #a54eca

#ca674e · #4eca67

Split-complementary

Open in tool →

#caa54e · #73ca4e

#ca4e73 · #b1ca4e · #4ecaa5

Contrast

#674eca as textRatioAAAA largeAAAFix
Aaon white
5.97:1passpassfail
  • AAA: use #5a3fc6 as the text (7.09:1)
Aaon black
3.52:1failpassfail
  • AA: use #7b66d1 as the text (4.66:1)
  • AAA: use #9d8ddd as the text (7.29:1)
  • AA: or shift the background to #e0e0e0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #674eca as the background.

Brands using this color

Fonts for this mood

#674eca reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #674eca
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 #674eca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/674eca-a99cc4-dfb64e-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