Color

#23133a

#23133a
hex#23133a
rgbrgb(35, 19, 58)
hslhsl(265, 51%, 15%)
oklchoklch(0.232 0.073 299.6)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0113

Colors that go with #23133a

Charcoal, Dark Olive Green and Royal Blue 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 →

#2a3a13

#13163a · #37133a

#3a2313 · #133a23

Split-complementary

Open in tool →

#3a3713 · #163a13

#3a1316 · #2a3a13 · #133a37

Contrast

#23133a as textRatioAAAA largeAAAFix
Aaon white
17.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #8b5dcb as the text (4.53:1)
  • AAA: use #a988d8 as the text (7.2:1)
  • AA: or shift the background to #858585 (4.64:1)
  • AAA: or shift the background to #a6a6a6 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23133a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#23133a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23133a
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 #23133a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23133a-b19cc4-dfd54e-2b1f2d-e9eaf1?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