Color

#688ca6

#688ca6
hex#688ca6
rgbrgb(104, 140, 166)
hslhsl(205, 26%, 53%)
oklchoklch(0.623 0.056 240.2)
Closest name: lightslategray (#778899)Relative luminance 0.2445

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a68268

#68a6a1 · #686da6

#a6688c · #8ca668

Split-complementary

Open in tool →

#a6686d · #a6a168

#a168a6 · #a68268 · #6da668

Contrast

#688ca6 as textRatioAAAA largeAAAFix
Aaon white
3.57:1failpassfail
  • AA: use #577a94 as the text (4.55:1)
  • AAA: use #405a6d as the text (7.24:1)
  • AA: or shift the background to #212121 (4.52:1)
Aaon black
5.89:1passpassfail
  • AAA: use #7b9bb2 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #688ca6 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #688ca6
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 #688ca6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/688ca6-9cafc4-df4e58-1f212d-e9f1f0?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