Color

#0a2133

#0a2133
hex#0a2133
rgbrgb(10, 33, 51)
hslhsl(206, 67%, 12%)
oklchoklch(0.24 0.045 245)
Closest name: Midnight Dreams (#002233)Relative luminance 0.0139

Tints & shades

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

Harmonies

Complementary

Open in tool →

#331c0a

#0a3330 · #0a0d33

#330a21 · #21330a

Split-complementary

Open in tool →

#330a0d · #33300a

#300a33 · #331c0a · #0d330a

Contrast

#0a2133 as textRatioAAAA largeAAAFix
Aaon white
16.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.28:1failfailfail
  • AA: use #257abb as the text (4.58:1)
  • AAA: use #4c9ddc as the text (7.16:1)
  • AA: or shift the background to #878787 (4.57:1)
  • AAA: or shift the background to #ababab (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a2133 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

#0a2133 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a2133
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 #0a2133 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a2133-9caec4-df4e56-1f212d-e9f1f1?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