Color

#5a787c

#5a787c
hex#5a787c
rgbrgb(90, 120, 124)
hslhsl(187, 16%, 42%)
oklchoklch(0.551 0.035 206.4)
Closest name: Batman (#656e72)Relative luminance 0.1706

Colors that go with #5a787c

Charcoal, Sienna and Amber 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 #5a787c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c5e5a

#5a7c6f · #5a677c

#7c5a78 · #787c5a

Split-complementary

Open in tool →

#7c5a67 · #7c6f5a

#6f5a7c · #7c5e5a · #677c5a

Contrast

#5a787c as textRatioAAAA largeAAAFix
Aaon white
4.76:1passpassfail
  • AAA: use #455c5f as the text (7.12:1)
Aaon black
4.41:1failpassfail
  • AA: use #5c7b7f as the text (4.59:1)
  • AAA: use #7d9da1 as the text (7.21:1)
  • AA: or shift the background to #fafafa (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a787c 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 #5a787c
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 #5a787c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a787c-a2b8be-df4e83-1f262d-e9f1ee?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