Color

#010d4c

#010d4c
hex#010d4c
rgbrgb(1, 13, 76)
hslhsl(230, 97%, 15%)
oklchoklch(0.211 0.115 264.4)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0082

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4b3f01

#01334b · #1a014b

#4b010e · #0e4b01

Split-complementary

Open in tool →

#4b1a01 · #334b01

#4b0133 · #4b3f01 · #014b1a

Contrast

#010d4c as textRatioAAAA largeAAAFix
Aaon white
18.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #4a68fc as the text (4.68:1)
  • AAA: use #778efd as the text (7.07:1)
  • AA: or shift the background to #808080 (4.57:1)
  • AAA: or shift the background to #a3a3a3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #010d4c 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

#010d4c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #010d4c
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 #010d4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/010d4c-9c9ec4-df814e-231f2d-e9eef1?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