Color

#154c56

#154c56
hex#154c56
rgbrgb(21, 76, 86)
hslhsl(189, 61%, 21%)
oklchoklch(0.386 0.058 212.2)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.06

Colors that go with #154c56

Steel Blue, Teal and Rust 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.

Real palettes that use #154c56

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#561f15

#15563f · #152c56

#56154c · #4c5615

Split-complementary

Open in tool →

#56152c · #563f15

#3f1556 · #561f15 · #2c5615

Contrast

#154c56 as textRatioAAAA largeAAAFix
Aaon white
9.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #237f90 as the text (4.51:1)
  • AAA: use #2da4b9 as the text (7.12:1)
  • AA: or shift the background to #b3b3b3 (4.55:1)
  • AAA: or shift the background to #dedede (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #154c56 as the background.

Brands using this color

Fonts for this mood

#154c56 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #154c56
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 #154c56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/154c56-a2b7be-df4e7e-1f252d-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