Color

#0a1e33

#0a1e33
hex#0a1e33
rgbrgb(10, 30, 51)
hslhsl(211, 67%, 12%)
oklchoklch(0.231 0.048 251.7)
Closest name: Midnight Dreams (#002233)Relative luminance 0.0123

Tints & shades

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

Harmonies

Complementary

Open in tool →

#331f0a

#0a3233 · #0b0a33

#330a1e · #1e330a

Split-complementary

Open in tool →

#330b0a · #32330a

#330a32 · #331f0a · #0a330b

Contrast

#0a1e33 as textRatioAAAA largeAAAFix
Aaon white
16.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #2878cc as the text (4.65:1)
  • AAA: use #5999de as the text (7.04:1)
  • AA: or shift the background to #858585 (4.57:1)
  • AAA: or shift the background to #a8a8a8 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a1e33 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

#0a1e33 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a1e33
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 #0a1e33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a1e33-9cabc4-df534e-1f202d-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