Color

#12233a

#12233a
hex#12233a
rgbrgb(18, 35, 58)
hslhsl(215, 53%, 15%)
oklchoklch(0.254 0.049 256.4)
Closest name: Dark Eclipse (#112244)Relative luminance 0.0164

Colors that go with #12233a

Charcoal, Dark Olive Green and Sea Green 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.

Real palettes that use #12233a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3b2a12

#12373b · #15123b

#3b1223 · #233b12

Split-complementary

Open in tool →

#3b1512 · #373b12

#3b1237 · #3b2a12 · #123b15

Contrast

#12233a as textRatioAAAA largeAAAFix
Aaon white
15.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #4077c4 as the text (4.65:1)
  • AAA: use #6f98d3 as the text (7.11:1)
  • AA: or shift the background to #8a8a8a (4.58:1)
  • AAA: or shift the background to #adadad (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12233a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#12233a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12233a
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 #12233a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12233a-9ca8c4-df5d4e-201f2d-e9f0f1?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