Color

#12263f

#12263f
hex#12263f
rgbrgb(18, 38, 63)
hslhsl(213, 56%, 16%)
oklchoklch(0.266 0.054 254.9)
Closest name: Eternal Darkness (#1c2841)Relative luminance 0.0187

Colors that go with #12263f

Charcoal, Sea 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 →

#402b12

#123d40 · #141240

#401227 · #274012

Split-complementary

Open in tool →

#401412 · #3d4012

#40123d · #402b12 · #124014

Contrast

#12263f as textRatioAAAA largeAAAFix
Aaon white
15.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #3776c3 as the text (4.54:1)
  • AAA: use #6899d4 as the text (7.1:1)
  • AA: or shift the background to #8c8c8c (4.54:1)
  • AAA: or shift the background to #b0b0b0 (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 #12263f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#12263f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12263f
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 #12263f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12263f-9ca9c4-df584e-1f202d-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