Color

#0a2e33

#0a2e33
hex#0a2e33
rgbrgb(10, 46, 51)
hslhsl(187, 67%, 12%)
oklchoklch(0.279 0.041 208.2)
Closest name: Black Box (#0f282f)Relative luminance 0.0226

Tints & shades

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

Harmonies

Complementary

Open in tool →

#330f0a

#0a3323 · #0a1a33

#330a2e · #2e330a

Split-complementary

Open in tool →

#330a1a · #33230a

#230a33 · #330f0a · #1a330a

Contrast

#0a2e33 as textRatioAAAA largeAAAFix
Aaon white
14.47:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #1d8391 as the text (4.71:1)
  • AAA: use #24a6b7 as the text (7.21:1)
  • AA: or shift the background to #919191 (4.59:1)
  • AAA: or shift the background to #b5b5b5 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a2e33 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

#0a2e33 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a2e33
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 #0a2e33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a2e33-a2b8be-df4e83-1f262d-e9f1ee?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