Color

#15364c

#15364c
hex#15364c
rgbrgb(21, 54, 76)
hslhsl(204, 57%, 19%)
oklchoklch(0.32 0.055 240.7)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0332

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4c2b15

#154c47 · #151a4c

#4c1536 · #364c15

Split-complementary

Open in tool →

#4c151a · #4c4715

#47154c · #4c2b15 · #1a4c15

Contrast

#15364c as textRatioAAAA largeAAAFix
Aaon white
12.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #2f7aac as the text (4.5:1)
  • AAA: use #539ed0 as the text (7.17:1)
  • AA: or shift the background to #9c9c9c (4.6:1)
  • AAA: or shift the background to #c2c2c2 (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 #15364c 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

#15364c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15364c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #15364c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15364c-9cafc4-df4e5a-1f222d-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