Color

#201731

#201731
hex#201731
rgbrgb(32, 23, 49)
hslhsl(261, 36%, 14%)
oklchoklch(0.23 0.05 298.3)
Closest name: Dark Knight (#151931)Relative luminance 0.0114

Tints & shades

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

Harmonies

Complementary

Open in tool →

#283117

#171b31 · #2d1731

#312017 · #173120

Split-complementary

Open in tool →

#312d17 · #1b3117

#31171b · #283117 · #17312d

Contrast

#201731 as textRatioAAAA largeAAAFix
Aaon white
17.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #8366b7 as the text (4.55:1)
  • AAA: use #a28dc9 as the text (7.19:1)
  • AA: or shift the background to #858585 (4.63:1)
  • AAA: or shift the background to #a6a6a6 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #201731 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#201731 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #201731
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 #201731 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/201731-af9cc4-dfcb4e-2a1f2d-e9eaf1?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