Color

#231e2e

#231e2e
hex#231e2e
rgbrgb(35, 30, 46)
hslhsl(259, 21%, 15%)
oklchoklch(0.248 0.031 298.5)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0148

Tints & shades

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

Harmonies

Complementary

Open in tool →

#292e1e

#1e212e · #2b1e2e

#2e231e · #1e2e23

Split-complementary

Open in tool →

#2e2b1e · #212e1e

#2e1e21 · #292e1e · #1e2e2b

Contrast

#231e2e as textRatioAAAA largeAAAFix
Aaon white
16.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #7e6ea0 as the text (4.63:1)
  • AAA: use #9c90b6 as the text (7.08:1)
  • AA: or shift the background to #878787 (4.51:1)
  • AAA: or shift the background to #ababab (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #231e2e as the background.

Brands using this color

Fonts for this mood

#231e2e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231e2e
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 #231e2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231e2e-ad9cc4-dfc74e-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