Color

#231d2f

#231d2f
hex#231d2f
rgbrgb(35, 29, 47)
hslhsl(260, 24%, 15%)
oklchoklch(0.246 0.035 299.2)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0144

Tints & shades

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

Harmonies

Complementary

Open in tool →

#292f1d

#1d202f · #2c1d2f

#2f231d · #1d2f23

Split-complementary

Open in tool →

#2f2c1d · #202f1d

#2f1d20 · #292f1d · #1d2f2c

Contrast

#231d2f as textRatioAAAA largeAAAFix
Aaon white
16.3:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #806ea6 as the text (4.7:1)
  • AAA: use #9f90bb as the text (7.18:1)
  • AA: or shift the background to #878787 (4.54:1)
  • AAA: or shift the background to #ababab (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #231d2f 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

#231d2f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231d2f
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 #231d2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231d2f-ae9cc4-dfc94e-2a1f2d-e9ebf1?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