Color

#23136c

#23136c
hex#23136c
rgbrgb(35, 19, 108)
hslhsl(251, 70%, 25%)
oklchoklch(0.283 0.142 280.5)
Closest name: midnightblue (#191970)Relative luminance 0.0191

Colors that go with #23136c

Charcoal, Steel Blue and 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 →

#5c6c13

#132f6c · #50136c

#6c2313 · #136c23

Split-complementary

Open in tool →

#6c5013 · #2f6c13

#6c132f · #5c6c13 · #136c50

Contrast

#23136c as textRatioAAAA largeAAAFix
Aaon white
15.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #775fe3 as the text (4.53:1)
  • AAA: use #9c8aea as the text (7.24:1)
  • AA: or shift the background to #8c8c8c (4.52:1)
  • AAA: or shift the background to #b0b0b0 (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 #23136c 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

#23136c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23136c
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 #23136c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23136c-a89cc4-dfb34e-281f2d-e9ecf1?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