Color

#133f44

#133f44
hex#133f44
rgbrgb(19, 63, 68)
hslhsl(186, 56%, 17%)
oklchoklch(0.34 0.048 205.7)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0411

Tints & shades

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

Harmonies

Complementary

Open in tool →

#441813

#134430 · #132644

#44133f · #3f4413

Split-complementary

Open in tool →

#441326 · #443013

#301344 · #441813 · #264413

Contrast

#133f44 as textRatioAAAA largeAAAFix
Aaon white
11.52:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #27818b as the text (4.6:1)
  • AAA: use #32a6b3 as the text (7.24:1)
  • AA: or shift the background to #a3a3a3 (4.57:1)
  • AAA: or shift the background to #cccccc (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #133f44 as the background.

Brands using this color

Fonts for this mood

#133f44 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #133f44
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 #133f44 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/133f44-a2b8be-df4e86-1f262d-e9f1ee?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