Color

#131023

#131023
hex#131023
rgbrgb(19, 16, 35)
hslhsl(249, 37%, 10%)
oklchoklch(0.188 0.038 289.5)
Closest name: Corbeau (#111122)Relative luminance 0.0063

Tints & shades

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

Harmonies

Complementary

Open in tool →

#202310

#101723 · #1c1023

#231310 · #102313

Split-complementary

Open in tool →

#231c10 · #172310

#231017 · #202310 · #10231c

Contrast

#131023 as textRatioAAAA largeAAAFix
Aaon white
18.65:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #786cbc as the text (4.67:1)
  • AAA: use #988fcc as the text (7.14:1)
  • AA: or shift the background to #7d7d7d (4.53:1)
  • AAA: or shift the background to #a1a1a1 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #131023 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#131023 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #131023
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 #131023 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/131023-a79cc4-dfae4e-271f2d-e9ecf1?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