Color

#4b758b

#4b758b
hex#4b758b
rgbrgb(75, 117, 139)
hslhsl(201, 30%, 42%)
oklchoklch(0.54 0.058 232.2)
Closest name: Harbour Blue (#417491)Relative luminance 0.1608

Colors that go with #4b758b

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 #4b758b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8b614b

#4b8b82 · #4b558b

#8b4b75 · #758b4b

Split-complementary

Open in tool →

#8b4b55 · #8b824b

#824b8b · #8b614b · #558b4b

Contrast

#4b758b as textRatioAAAA largeAAAFix
Aaon white
4.98:1passpassfail
  • AAA: use #3b5c6d as the text (7.15:1)
Aaon black
4.22:1failpassfail
  • AA: use #4f7a92 as the text (4.53:1)
  • AAA: use #709bb2 as the text (7.02:1)
  • AA: or shift the background to #f5f5f5 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b758b 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 #4b758b
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 #4b758b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b758b-9cb1c4-df4e62-1f222d-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