Color

#0a1c39

#0a1c39
hex#0a1c39
rgbrgb(10, 28, 57)
hslhsl(217, 70%, 13%)
oklchoklch(0.23 0.061 259.5)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0119

Tints & shades

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

Harmonies

Complementary

Open in tool →

#38270a

#0a3338 · #0f0a38

#380a1c · #1c380a

Split-complementary

Open in tool →

#380f0a · #33380a

#380a33 · #38270a · #0a380f

Contrast

#0a1c39 as textRatioAAAA largeAAAFix
Aaon white
16.96:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #3374db as the text (4.66:1)
  • AAA: use #6797e4 as the text (7.12:1)
  • AA: or shift the background to #858585 (4.6:1)
  • AAA: or shift the background to #a8a8a8 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a1c39 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

#0a1c39 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a1c39
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 #0a1c39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a1c39-9ca7c4-df624e-201f2d-e9f0f1?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