Color

#728b97

#728b97
hex#728b97
rgbrgb(114, 139, 151)
hslhsl(199, 15%, 52%)
oklchoklch(0.621 0.034 228.6)
Closest name: lightslategray (#778899)Relative luminance 0.2428

Tints & shades

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

Harmonies

Complementary

Open in tool →

#977e72

#729790 · #727997

#97728b · #8b9772

Split-complementary

Open in tool →

#977279 · #979072

#907297 · #977e72 · #799772

Contrast

#728b97 as textRatioAAAA largeAAAFix
Aaon white
3.59:1failpassfail
  • AA: use #627984 as the text (4.58:1)
  • AAA: use #4a5b64 as the text (7.07:1)
  • AA: or shift the background to #1f1f1f (4.6:1)
Aaon black
5.86:1passpassfail
  • AAA: use #849aa4 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #728b97 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 #728b97
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 #728b97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/728b97-9cb3c4-df4e66-1f232d-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