Color

#23243e

#23243e
hex#23243e
rgbrgb(35, 36, 62)
hslhsl(238, 28%, 19%)
oklchoklch(0.273 0.048 281)
Closest name: Midnight Express (#21263a)Relative luminance 0.0197

Colors that go with #23243e

Charcoal, Dark Olive Green and Sienna 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e3d23

#23313e · #30233e

#3e2324 · #243e23

Split-complementary

Open in tool →

#3e3023 · #313e23

#3e2331 · #3e3d23 · #233e30

Contrast

#23243e as textRatioAAAA largeAAAFix
Aaon white
15.07:1passpasspassPasses AAA — no fix needed.
Aaon black
1.39:1failfailfail
  • AA: use #6f71ae as the text (4.65:1)
  • AAA: use #9092c1 as the text (7.07:1)
  • AA: or shift the background to #8f8f8f (4.66:1)
  • AAA: or shift the background to #b3b3b3 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23243e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#23243e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23243e
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 #23243e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23243e-9f9cc4-df944e-251f2d-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