Color

#738c8b

#738c8b
hex#738c8b
rgbrgb(115, 140, 139)
hslhsl(178, 10%, 50%)
oklchoklch(0.62 0.029 193.4)
Closest name: Armour (#74857f)Relative luminance 0.2427

Colors that go with #738c8b

Charcoal, Burlywood and Champagne lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #738c8b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c7374

#738c7f · #73808c

#8b738c · #8c8b73

Split-complementary

Open in tool →

#8c7380 · #8c7f73

#7f738c · #8c7374 · #808c73

Contrast

#738c8b as textRatioAAAA largeAAAFix
Aaon white
3.59:1failpassfail
  • AA: use #637978 as the text (4.63:1)
  • AAA: use #495a59 as the text (7.27:1)
  • AA: or shift the background to #1f1f1f (4.59:1)
Aaon black
5.85:1passpassfail
  • AAA: use #849a99 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #738c8b 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 #738c8b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #738c8b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/738c8b-a2bcbe-d45999-1f282d-e9f1ed?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