Named color

Artist’s Charcoal

#37393e
hex#37393e
rgbrgb(55, 57, 62)
hslhsl(223, 6%, 23%)
oklchoklch(0.345 0.009 268.4)
Relative luminance 0.0409

Artist’s Charcoal on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 1 public brand that uses it and the palettes it appears in.

Colors that go with Artist’s Charcoal

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.

Real palettes that use Artist’s Charcoal

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e3c37

#373d3e · #39373e

#3e3739 · #393e37

Split-complementary

Open in tool →

#3e3937 · #3d3e37

#3e373d · #3e3c37 · #373e39

Contrast

Artist’s Charcoal as textRatioAAAA largeAAAFix
Aaon white
11.56:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #71757f as the text (4.55:1)
  • AAA: use #93969f as the text (7.1:1)
  • AA: or shift the background to #a3a3a3 (4.58:1)
  • AAA: or shift the background to #cccccc (7.2:1)

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

Brands using this color

Fonts for this mood

Artist’s Charcoal reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around Artist’s Charcoal
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 #37393e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37393e-a2beb0-c859d4-1f2d2b-eaf1e9?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