Color

#393743

#393743
hex#393743
rgbrgb(57, 55, 67)
hslhsl(250, 10%, 24%)
oklchoklch(0.344 0.021 292.9)
Closest name: After Midnight (#38393f)Relative luminance 0.0401

Colors that go with #393743

Amber, Blue and Blush Pink 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 →

#414337

#373b43 · #3f3743

#433937 · #374339

Split-complementary

Open in tool →

#433f37 · #3b4337

#43373b · #414337 · #37433f

Contrast

#393743 as textRatioAAAA largeAAAFix
Aaon white
11.66:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #77738c as the text (4.62:1)
  • AAA: use #9894a8 as the text (7.14:1)
  • AA: or shift the background to #a1a1a1 (4.51:1)
  • AAA: or shift the background to #c9c9c9 (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 #393743 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#393743 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #393743
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 #393743 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/393743-a79cc4-dfb14e-281f2d-e9ecf1?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