Color

#456d87

#456d87
hex#456d87
rgbrgb(69, 109, 135)
hslhsl(204, 32%, 40%)
oklchoklch(0.516 0.061 238.1)
Closest name: Calypso (#3d7188)Relative luminance 0.1395

Colors that go with #456d87

Charcoal, Royal Blue and Sienna 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 →

#875f45

#458780 · #454c87

#87456d · #6d8745

Split-complementary

Open in tool →

#87454c · #878045

#804587 · #875f45 · #4c8745

Contrast

#456d87 as textRatioAAAA largeAAAFix
Aaon white
5.54:1passpassfail
  • AAA: use #3b5c72 as the text (7.1:1)
Aaon black
3.79:1failpassfail
  • AA: use #4e7a97 as the text (4.55:1)
  • AAA: use #729bb6 as the text (7.08:1)
  • AA: or shift the background to #e8e8e8 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #456d87 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 #456d87
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 #456d87 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/456d87-9cafc4-df4e5a-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