Color

#455d5e

#455d5e
hex#455d5e
rgbrgb(69, 93, 94)
hslhsl(182, 15%, 32%)
oklchoklch(0.459 0.029 199.4)
Closest name: Arctic Nights (#345c61)Relative luminance 0.099

Colors that go with #455d5e

Blue, Blush Pink 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5e4645

#455e52 · #45515e

#5e455d · #5d5e45

Split-complementary

Open in tool →

#5e4551 · #5e5245

#52455e · #5e4645 · #515e45

Contrast

#455d5e as textRatioAAAA largeAAAFix
Aaon white
7.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #5b7a7b as the text (4.51:1)
  • AAA: use #7b9c9d as the text (7.08:1)
  • AA: or shift the background to #cfcfcf (4.52:1)
  • AAA: or shift the background to #ffffff (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #455d5e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #455d5e
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 #455d5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/455d5e-a2babe-d45990-1f272d-e9f1ee?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