Color

#617c8f

#617c8f
hex#617c8f
rgbrgb(97, 124, 143)
hslhsl(205, 19%, 47%)
oklchoklch(0.572 0.043 239.2)
Closest name: Citadel (#6a7f8b)Relative luminance 0.1894

Colors that go with #617c8f

Charcoal, Copper 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 #617c8f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8f7461

#618f8b · #61658f

#8f617c · #7c8f61

Split-complementary

Open in tool →

#8f6165 · #8f8b61

#8b618f · #8f7461 · #658f61

Contrast

#617c8f as textRatioAAAA largeAAAFix
Aaon white
4.39:1failpassfail
  • AA: use #5f798c as the text (4.57:1)
  • AAA: use #465967 as the text (7.28:1)
  • AA: or shift the background to #0a0a0a (4.51:1)
Aaon black
4.79:1passpassfail
  • AAA: use #839aaa 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 #617c8f 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 #617c8f
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 #617c8f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/617c8f-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