Color

#001238

#001238
hex#001238
rgbrgb(0, 18, 56)
hslhsl(221, 100%, 11%)
oklchoklch(0.197 0.079 259.8)
Closest name: Infinite Night (#071037)Relative luminance 0.0072

Tints & shades

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

Harmonies

Complementary

Open in tool →

#382600

#002e38 · #0a0038

#380012 · #123800

Split-complementary

Open in tool →

#380a00 · #2e3800

#38002e · #382600 · #00380a

Contrast

#001238 as textRatioAAAA largeAAAFix
Aaon white
18.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #2469ff as the text (4.54:1)
  • AAA: use #6193ff as the text (7.13:1)
  • AA: or shift the background to #808080 (4.65:1)
  • AAA: or shift the background to #a1a1a1 (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 #001238 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

#001238 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #001238
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 #001238 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/001238-9ca4c4-df6b4e-211f2d-e9eff1?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