Color

#333243

#333243
hex#333243
rgbrgb(51, 50, 67)
hslhsl(244, 15%, 23%)
oklchoklch(0.325 0.03 287.3)
Closest name: After Midnight (#38393f)Relative luminance 0.0339

Tints & shades

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

Harmonies

Complementary

Open in tool →

#424332

#323943 · #3c3243

#433332 · #324333

Split-complementary

Open in tool →

#433c32 · #394332

#433239 · #424332 · #32433c

Contrast

#333243 as textRatioAAAA largeAAAFix
Aaon white
12.51:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #757297 as the text (4.61:1)
  • AAA: use #9795b1 as the text (7.25:1)
  • AA: or shift the background to #9c9c9c (4.56:1)
  • AAA: or shift the background to #c2c2c2 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #333243 as the background.

Brands using this color

Fonts for this mood

#333243 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #333243
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 #333243 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/333243-a39cc4-dfa24e-261f2d-e9edf1?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