Color

#0a0b2f

#0a0b2f
hex#0a0b2f
rgbrgb(10, 11, 47)
hslhsl(238, 65%, 11%)
oklchoklch(0.178 0.07 275.4)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0051

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2e2d0a

#0a1d2e · #1b0a2e

#2e0a0b · #0b2e0a

Split-complementary

Open in tool →

#2e1b0a · #1d2e0a

#2e0a1d · #2e2d0a · #0a2e1b

Contrast

#0a0b2f as textRatioAAAA largeAAAFix
Aaon white
19.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.1:1failfailfail
  • AA: use #6367de as the text (4.53:1)
  • AAA: use #8d90e7 as the text (7.28:1)
  • AA: or shift the background to #7d7d7d (4.63:1)
  • AAA: or shift the background to #9e9e9e (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a0b2f 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

#0a0b2f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a0b2f
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 #0a0b2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a0b2f-9f9cc4-df944e-251f2d-e9edf1?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