Color

#454e8c

#454e8c
hex#454e8c
rgbrgb(69, 78, 140)
hslhsl(232, 34%, 41%)
oklchoklch(0.447 0.102 275.3)
Closest name: Dusk (#4e5481)Relative luminance 0.0861

Colors that go with #454e8c

Charcoal, Sea Green and Steel 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 #454e8c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c8345

#45728c · #5f458c

#8c454e · #4e8c45

Split-complementary

Open in tool →

#8c5f45 · #728c45

#8c4572 · #8c8345 · #458c5f

Contrast

#454e8c as textRatioAAAA largeAAAFix
Aaon white
7.72:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #6570b3 as the text (4.52:1)
  • AAA: use #8b93c6 as the text (7.09:1)
  • AA: or shift the background to #c7c7c7 (4.56:1)
  • AAA: or shift the background to #f5f5f5 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #454e8c 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 #454e8c
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 #454e8c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/454e8c-9c9dc4-df864e-231f2d-e9eef1?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