Color

#456c7d

#456c7d
hex#456c7d
rgbrgb(69, 108, 125)
hslhsl(198, 29%, 38%)
oklchoklch(0.509 0.052 227.3)
Closest name: Calypso (#3d7188)Relative luminance 0.1347

Colors that go with #456c7d

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d5645

#457d72 · #45507d

#7d456c · #6c7d45

Split-complementary

Open in tool →

#7d4550 · #7d7245

#72457d · #7d5645 · #507d45

Contrast

#456c7d as textRatioAAAA largeAAAFix
Aaon white
5.68:1passpassfail
  • AAA: use #3a5b69 as the text (7.29:1)
Aaon black
3.69:1failpassfail
  • AA: use #507d91 as the text (4.68:1)
  • AAA: use #6e9caf as the text (7.04:1)
  • AA: or shift the background to #e6e6e6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #456c7d 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 #456c7d
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 #456c7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/456c7d-9cb3c4-df4e69-1f232d-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