Color

#0a232e

#0a232e
hex#0a232e
rgbrgb(10, 35, 46)
hslhsl(198, 64%, 11%)
oklchoklch(0.242 0.037 229.9)
Closest name: Sunken Ship (#10252a)Relative luminance 0.0146

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2e150a

#0a2e27 · #0a112e

#2e0a23 · #232e0a

Split-complementary

Open in tool →

#2e0a11 · #2e270a

#270a2e · #2e150a · #112e0a

Contrast

#0a232e as textRatioAAAA largeAAAFix
Aaon white
16.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #247da3 as the text (4.54:1)
  • AAA: use #2ea0d1 as the text (7.07:1)
  • AA: or shift the background to #878787 (4.52:1)
  • AAA: or shift the background to #ababab (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a232e as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#0a232e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a232e
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 #0a232e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a232e-9cb3c4-df4e69-1f232d-e9f1f0?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