Color

#674fb5

#674fb5
hex#674fb5
rgbrgb(103, 79, 181)
hslhsl(254, 41%, 51%)
oklchoklch(0.505 0.155 290.6)
Closest name: slateblue (#6a5acd)Relative luminance 0.1181

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9db54f

#4f6ab5 · #9a4fb5

#b5674f · #4fb567

Split-complementary

Open in tool →

#b59a4f · #6ab54f

#b54f6a · #9db54f · #4fb59a

Contrast

#674fb5 as textRatioAAAA largeAAAFix
Aaon white
6.25:1passpassfail
  • AAA: use #5e47a9 as the text (7.12:1)
Aaon black
3.36:1failpassfail
  • AA: use #7c68c0 as the text (4.6:1)
  • AAA: use #9c8ccf as the text (7.07:1)
  • AA: or shift the background to #dbdbdb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #674fb5 as the background.

Brands using this color

Fonts for this mood

#674fb5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #674fb5
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 #674fb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/674fb5-aa9cc4-dfbb4e-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