Color

#12394e

#12394e
hex#12394e
rgbrgb(18, 57, 78)
hslhsl(201, 63%, 19%)
oklchoklch(0.328 0.057 235.9)
Closest name: Into the Night (#1e3642)Relative luminance 0.036

Colors that go with #12394e

Royal Blue, Teal 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 →

#4f2712

#124f46 · #121b4f

#4f123a · #3a4f12

Split-complementary

Open in tool →

#4f121b · #4f4612

#46124f · #4f2712 · #1b4f12

Contrast

#12394e as textRatioAAAA largeAAAFix
Aaon white
12.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #277caa as the text (4.55:1)
  • AAA: use #3c9ed3 as the text (7.02:1)
  • AA: or shift the background to #9e9e9e (4.55:1)
  • AAA: or shift the background to #c7c7c7 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12394e as the background.

Brands using this color

Fonts for this mood

#12394e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12394e
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 #12394e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12394e-9cb1c4-df4e62-1f222d-e9f1f0?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