Color

#135158

#135158
hex#135158
rgbrgb(19, 81, 88)
hslhsl(186, 64%, 21%)
oklchoklch(0.4 0.061 206.2)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0673

Colors that go with #135158

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 →

#581a13

#13583c · #132f58

#581351 · #515813

Split-complementary

Open in tool →

#58132f · #583c13

#3c1358 · #581a13 · #2f5813

Contrast

#135158 as textRatioAAAA largeAAAFix
Aaon white
8.95:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #1f838e as the text (4.7:1)
  • AAA: use #27a6b4 as the text (7.2:1)
  • AA: or shift the background to #b8b8b8 (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #135158 as the background.

Brands using this color

Fonts for this mood

#135158 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #135158
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 #135158 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/135158-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