Color

#131d30

#131d30
hex#131d30
rgbrgb(19, 29, 48)
hslhsl(219, 43%, 13%)
oklchoklch(0.232 0.04 262.5)
Closest name: Dark Knight (#151931)Relative luminance 0.0123

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2f2513

#132b2f · #17132f

#2f131d · #1d2f13

Split-complementary

Open in tool →

#2f1713 · #2b2f13

#2f132b · #2f2513 · #132f17

Contrast

#131d30 as textRatioAAAA largeAAAFix
Aaon white
16.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #5075b9 as the text (4.59:1)
  • AAA: use #7c97cb as the text (7.15:1)
  • AA: or shift the background to #858585 (4.57:1)
  • AAA: or shift the background to #a8a8a8 (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 #131d30 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#131d30 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #131d30
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 #131d30 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/131d30-9ca5c4-df664e-211f2d-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