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

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

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

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 — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

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