Color

#125259

#125259
hex#125259
rgbrgb(18, 82, 89)
hslhsl(186, 66%, 21%)
oklchoklch(0.403 0.062 205.9)
Closest name: Abyssal Waters (#005765)Relative luminance 0.0688

Colors that go with #125259

Crimson, 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 →

#591912

#12593d · #122e59

#591252 · #525912

Split-complementary

Open in tool →

#59122e · #593d12

#3d1259 · #591912 · #2e5912

Contrast

#125259 as textRatioAAAA largeAAAFix
Aaon white
8.84:1passpasspassPasses AAA — no fix needed.
Aaon black
2.38:1failfailfail
  • AA: use #1d818c as the text (4.57:1)
  • AAA: use #24a4b2 as the text (7.03:1)
  • AA: or shift the background to #bababa (4.55:1)
  • AAA: or shift the background to #e6e6e6 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #125259 as the background.

Brands using this color

Fonts for this mood

#125259 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #125259
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 #125259 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/125259-a2b8be-df4e86-1f262d-e9f1ee?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