Color

#123945

#123945
hex#123945
rgbrgb(18, 57, 69)
hslhsl(194, 59%, 17%)
oklchoklch(0.323 0.048 221.7)
Closest name: Into the Night (#1e3642)Relative luminance 0.0348

Colors that go with #123945

Crimson, Sienna and Steel 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 →

#451e12

#124537 · #121f45

#451239 · #394512

Split-complementary

Open in tool →

#45121f · #453712

#371245 · #451e12 · #1f4512

Contrast

#123945 as textRatioAAAA largeAAAFix
Aaon white
12.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.7:1failfailfail
  • AA: use #287f9a as the text (4.59:1)
  • AAA: use #32a1c3 as the text (7.02:1)
  • AA: or shift the background to #9c9c9c (4.51:1)
  • AAA: or shift the background to #c4c4c4 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #123945 as the background.

Brands using this color

Fonts for this mood

#123945 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #123945
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 #123945 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/123945-9cb6c4-df4e72-1f242d-e9f1ef?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