Color

#4c5670

#4c5670
hex#4c5670
rgbrgb(76, 86, 112)
hslhsl(223, 19%, 37%)
oklchoklch(0.455 0.045 268.3)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.0936

Colors that go with #4c5670

Steel Blue, Blue and Cadet Blue 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 #4c5670

Tints & shades

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

Harmonies

Complementary

Open in tool →

#70664c

#4c6970 · #544c70

#704c57 · #57704c

Split-complementary

Open in tool →

#70544c · #69704c

#704c69 · #70664c · #4c7054

Contrast

#4c5670 as textRatioAAAA largeAAAFix
Aaon white
7.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #677598 as the text (4.57:1)
  • AAA: use #8c96b1 as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.55:1)
  • AAA: or shift the background to #fafafa (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4c5670 as the background.

Brands using this color

mcpConnect your agent — build around #4c5670
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 #4c5670 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4c5670-9ca3c4-df704e-211f2d-e9eff1?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