Color

#457387

#457387
hex#457387
rgbrgb(69, 115, 135)
hslhsl(198, 32%, 40%)
oklchoklch(0.531 0.059 227.6)
Closest name: Calypso (#3d7188)Relative luminance 0.1528

Colors that go with #457387

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 #457387

Tints & shades

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

Harmonies

Complementary

Open in tool →

#875945

#45877a · #455287

#874573 · #738745

Split-complementary

Open in tool →

#874552 · #877a45

#7a4587 · #875945 · #528745

Contrast

#457387 as textRatioAAAA largeAAAFix
Aaon white
5.18:1passpassfail
  • AAA: use #375c6c as the text (7.22:1)
Aaon black
4.06:1failpassfail
  • AA: use #4b7c91 as the text (4.59:1)
  • AAA: use #6b9db3 as the text (7.1:1)
  • AA: or shift the background to #f0f0f0 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #457387 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 #457387
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 #457387 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/457387-9cb3c4-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