Color

#01243d

#01243d
hex#01243d
rgbrgb(1, 36, 61)
hslhsl(205, 97%, 12%)
oklchoklch(0.251 0.061 244.7)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0161

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3c1a01

#013c37 · #01063c

#3c0124 · #243c01

Split-complementary

Open in tool →

#3c0106 · #3c3701

#37013c · #3c1a01 · #063c01

Contrast

#01243d as textRatioAAAA largeAAAFix
Aaon white
15.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #0379ce as the text (4.63:1)
  • AAA: use #139bfb as the text (7.11:1)
  • AA: or shift the background to #8a8a8a (4.6:1)
  • AAA: or shift the background to #adadad (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #01243d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#01243d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01243d
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 #01243d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01243d-9cafc4-df4e58-1f212d-e9f1f0?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