Color

#13283f

#13283f
hex#13283f
rgbrgb(19, 40, 63)
hslhsl(211, 54%, 16%)
oklchoklch(0.272 0.051 252.1)
Closest name: Eternal Darkness (#1c2841)Relative luminance 0.0201

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f2a13

#133e3f · #14133f

#3f1328 · #283f13

Split-complementary

Open in tool →

#3f1413 · #3e3f13

#3f133e · #3f2a13 · #133f14

Contrast

#13283f as textRatioAAAA largeAAAFix
Aaon white
14.97:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #3878bc as the text (4.58:1)
  • AAA: use #669ad1 as the text (7.11:1)
  • AA: or shift the background to #8f8f8f (4.63:1)
  • AAA: or shift the background to #b3b3b3 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #13283f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#13283f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #13283f
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 #13283f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/13283f-9cabc4-df534e-1f202d-e9f1f1?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