Color

#233039

#233039
hex#233039
rgbrgb(35, 48, 57)
hslhsl(205, 24%, 18%)
oklchoklch(0.301 0.024 238.8)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0277

Tints & shades

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

Harmonies

Complementary

Open in tool →

#392c23

#233937 · #232539

#392330 · #303923

Split-complementary

Open in tool →

#392325 · #393723

#372339 · #392c23 · #253923

Contrast

#233039 as textRatioAAAA largeAAAFix
Aaon white
13.52:1passpasspassPasses AAA — no fix needed.
Aaon black
1.55:1failfailfail
  • AA: use #597a91 as the text (4.62:1)
  • AAA: use #7d9bb0 as the text (7.19:1)
  • AA: or shift the background to #969696 (4.57:1)
  • AAA: or shift the background to #bdbdbd (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 #233039 as the background.

Brands using this color

Fonts for this mood

#233039 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233039
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 #233039 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233039-9cafc4-df4e58-1f212d-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