Color

#688fcf

#688fcf
hex#688fcf
rgbrgb(104, 143, 207)
hslhsl(217, 52%, 61%)
oklchoklch(0.648 0.106 260)
Closest name: Blue Bay (#619ad6)Relative luminance 0.2709

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cfa868

#68c3cf · #7468cf

#cf688f · #8fcf68

Split-complementary

Open in tool →

#cf7468 · #c3cf68

#cf68c3 · #cfa868 · #68cf74

Contrast

#688fcf as textRatioAAAA largeAAAFix
Aaon white
3.27:1failpassfail
  • AA: use #4576c4 as the text (4.52:1)
  • AAA: use #305797 as the text (7.15:1)
  • AA: or shift the background to #262626 (4.63:1)
Aaon black
6.42:1passpassfail
  • AAA: use #7398d3 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #688fcf 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

#688fcf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #688fcf
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 #688fcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/688fcf-9ca7c4-df624e-201f2d-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