Color

#283233

#283233
hex#283233
rgbrgb(40, 50, 51)
hslhsl(185, 12%, 18%)
oklchoklch(0.308 0.014 203.9)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0297

Tints & shades

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

Harmonies

Complementary

Open in tool →

#332928

#28332f · #282d33

#332832 · #323328

Split-complementary

Open in tool →

#33282d · #332f28

#2f2833 · #332928 · #2d3328

Contrast

#283233 as textRatioAAAA largeAAAFix
Aaon white
13.17:1passpasspassPasses AAA — no fix needed.
Aaon black
1.59:1failfailfail
  • AA: use #60797b as the text (4.52:1)
  • AAA: use #819a9c as the text (7.04:1)
  • AA: or shift the background to #999999 (4.62:1)
  • AAA: or shift the background to #bdbdbd (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #283233 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#283233 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #283233
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 #283233 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/283233-a2b8be-df4e88-1f262d-e9f1ee?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