Color

#131f2a

#131f2a
hex#131f2a
rgbrgb(19, 31, 42)
hslhsl(209, 38%, 12%)
oklchoklch(0.234 0.027 246.9)
Closest name: Sunken Ship (#10252a)Relative luminance 0.0129

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2a1e13

#132a2a · #13132a

#2a131f · #1f2a13

Split-complementary

Open in tool →

#2a1313 · #2a2a13

#2a132a · #2a1e13 · #132a13

Contrast

#131f2a as textRatioAAAA largeAAAFix
Aaon white
16.7:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #4a79a5 as the text (4.57:1)
  • AAA: use #729ac0 as the text (7.1:1)
  • AA: or shift the background to #858585 (4.53:1)
  • AAA: or shift the background to #a8a8a8 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #131f2a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#131f2a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #131f2a
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 #131f2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/131f2a-9cacc4-df4e4e-1f212d-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