Color

#153b47

#153b47
hex#153b47
rgbrgb(21, 59, 71)
hslhsl(194, 54%, 18%)
oklchoklch(0.331 0.047 221.9)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0374

Colors that go with #153b47

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 →

#472115

#154739 · #152247

#47153b · #3b4715

Split-complementary

Open in tool →

#471522 · #473915

#391547 · #472115 · #224715

Contrast

#153b47 as textRatioAAAA largeAAAFix
Aaon white
12.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #2e8099 as the text (4.66:1)
  • AAA: use #39a1c0 as the text (7.03:1)
  • AA: or shift the background to #a1a1a1 (4.65:1)
  • AAA: or shift the background to #c7c7c7 (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 #153b47 as the background.

Brands using this color

Fonts for this mood

#153b47 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #153b47
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 #153b47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/153b47-9cb6c4-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