Color

#15536f

#15536f
hex#15536f
rgbrgb(21, 83, 111)
hslhsl(199, 68%, 26%)
oklchoklch(0.418 0.076 232.8)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0749

Colors that go with #15536f

Crimson, Royal Blue and Teal 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 →

#6f3215

#156f5f · #15266f

#6f1553 · #536f15

Split-complementary

Open in tool →

#6f1526 · #6f5f15

#5f156f · #6f3215 · #266f15

Contrast

#15536f as textRatioAAAA largeAAAFix
Aaon white
8.4:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #207ca7 as the text (4.5:1)
  • AAA: use #299fd6 as the text (7.02:1)
  • AA: or shift the background to #bfbfbf (4.57:1)
  • AAA: or shift the background to #ebebeb (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15536f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#15536f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15536f
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 #15536f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15536f-9cb3c4-df4e66-1f232d-e9f1f0?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