Color

#374753

#374753
hex#374753
rgbrgb(55, 71, 83)
hslhsl(206, 20%, 27%)
oklchoklch(0.389 0.029 240.9)
Closest name: Charcoal (#36454f)Relative luminance 0.0594

Colors that go with #374753

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 →

#534337

#375351 · #373953

#533747 · #475337

Split-complementary

Open in tool →

#533739 · #535137

#513753 · #534337 · #395337

Contrast

#374753 as textRatioAAAA largeAAAFix
Aaon white
9.59:1passpasspassPasses AAA — no fix needed.
Aaon black
2.19:1failfailfail
  • AA: use #5e788d as the text (4.55:1)
  • AAA: use #8299ab as the text (7.09:1)
  • AA: or shift the background to #b3b3b3 (4.58:1)
  • AAA: or shift the background to #dedede (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #374753 as the background.

Brands using this color

Fonts for this mood

#374753 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #374753
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 #374753 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/374753-9caec4-df4e56-1f212d-e9f1f1?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