Color

#01538d

#01538d
hex#01538d
rgbrgb(1, 83, 141)
hslhsl(205, 99%, 28%)
oklchoklch(0.433 0.117 248.4)
Closest name: Beyond the Sea (#005784)Relative luminance 0.0812

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8e3c01

#018e82 · #010c8e

#8e0153 · #538e01

Split-complementary

Open in tool →

#8e010c · #8e8201

#82018e · #8e3c01 · #0c8e01

Contrast

#01538d as textRatioAAAA largeAAAFix
Aaon white
8.01:1passpasspassPasses AAA — no fix needed.
Aaon black
2.62:1failfailfail
  • AA: use #0177cb as the text (4.5:1)
  • AAA: use #0b99fe as the text (7:1)
  • AA: or shift the background to #c4c4c4 (4.59:1)
  • AAA: or shift the background to #f0f0f0 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #01538d 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

#01538d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01538d
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 #01538d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01538d-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