Color

#15263c

#15263c
hex#15263c
rgbrgb(21, 38, 60)
hslhsl(214, 48%, 16%)
oklchoklch(0.266 0.047 255.4)
Closest name: Eternal Darkness (#1c2841)Relative luminance 0.0187

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3c2b15

#153a3c · #18153c

#3c1526 · #263c15

Split-complementary

Open in tool →

#3c1815 · #3a3c15

#3c153a · #3c2b15 · #153c18

Contrast

#15263c as textRatioAAAA largeAAAFix
Aaon white
15.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #4277bd as the text (4.61:1)
  • AAA: use #7098cd as the text (7.06:1)
  • AA: or shift the background to #8c8c8c (4.54:1)
  • AAA: or shift the background to #b0b0b0 (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 #15263c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#15263c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15263c
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 #15263c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15263c-9ca9c4-df5a4e-1f1f2d-e9f0f1?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