Color

#678fda

#678fda
hex#678fda
rgbrgb(103, 143, 218)
hslhsl(219, 61%, 63%)
oklchoklch(0.653 0.121 262.2)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.2759

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dab267

#67c9da · #7867da

#da678f · #8fda67

Split-complementary

Open in tool →

#da7867 · #c9da67

#da67c9 · #dab267 · #67da78

Contrast

#678fda as textRatioAAAA largeAAAFix
Aaon white
3.22:1failpassfail
  • AA: use #4274d1 as the text (4.52:1)
  • AAA: use #2955a8 as the text (7.1:1)
  • AA: or shift the background to #292929 (4.52:1)
Aaon black
6.52:1passpassfail
  • AAA: use #6f95dc as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #678fda 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

#678fda reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #678fda
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 #678fda and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/678fda-9ca5c4-df664e-211f2d-e9f0f1?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