Color

#674bc3

#674bc3
hex#674bc3
rgbrgb(103, 75, 195)
hslhsl(254, 50%, 53%)
oklchoklch(0.509 0.179 289.2)
Closest name: slateblue (#6a5acd)Relative luminance 0.1186

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a7c34b

#4b6bc3 · #a34bc3

#c3674b · #4bc367

Split-complementary

Open in tool →

#c3a34b · #6bc34b

#c34b6b · #a7c34b · #4bc3a3

Contrast

#674bc3 as textRatioAAAA largeAAAFix
Aaon white
6.23:1passpassfail
  • AAA: use #5e40bf as the text (7.09:1)
Aaon black
3.37:1failpassfail
  • AA: use #7e66cc as the text (4.66:1)
  • AAA: use #9e8cd9 as the text (7.21:1)
  • AA: or shift the background to #dedede (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #674bc3 as the background.

Brands using this color

Fonts for this mood

#674bc3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #674bc3
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 #674bc3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/674bc3-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