Color

#233238

#233238
hex#233238
rgbrgb(35, 50, 56)
hslhsl(197, 23%, 18%)
oklchoklch(0.306 0.023 224.5)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0292

Colors that go with #233238

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 #233238

Tints & shades

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

Harmonies

Complementary

Open in tool →

#382923

#233834 · #232838

#382332 · #323823

Split-complementary

Open in tool →

#382328 · #383423

#342338 · #382923 · #283823

Contrast

#233238 as textRatioAAAA largeAAAFix
Aaon white
13.25:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #567b8a as the text (4.6:1)
  • AAA: use #789cab as the text (7.14:1)
  • AA: or shift the background to #999999 (4.65:1)
  • AAA: or shift the background to #bdbdbd (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #233238 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#233238 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233238
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 #233238 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233238-9cb4c4-df4e6b-1f232d-e9f1ef?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