Color

#2e4757

#2e4757
hex#2e4757
rgbrgb(46, 71, 87)
hslhsl(203, 31%, 26%)
oklchoklch(0.385 0.041 237.4)
Closest name: Charcoal (#36454f)Relative luminance 0.0578

Colors that go with #2e4757

Steel Blue, Teal 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 →

#573e2e

#2e5752 · #2e3357

#572e47 · #47572e

Split-complementary

Open in tool →

#572e33 · #57522e

#522e57 · #573e2e · #33572e

Contrast

#2e4757 as textRatioAAAA largeAAAFix
Aaon white
9.74:1passpasspassPasses AAA — no fix needed.
Aaon black
2.16:1failfailfail
  • AA: use #4f7b96 as the text (4.61:1)
  • AAA: use #739cb5 as the text (7.15:1)
  • AA: or shift the background to #b3b3b3 (4.65:1)
  • AAA: or shift the background to #dbdbdb (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2e4757 as the background.

Brands using this color

Fonts for this mood

#2e4757 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2e4757
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 #2e4757 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2e4757-9cb0c4-df4e5d-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