Color

#015998

#015998
hex#015998
rgbrgb(1, 89, 152)
hslhsl(205, 99%, 30%)
oklchoklch(0.455 0.125 248.9)
Closest name: Blue Chip (#1d5699)Relative luminance 0.0942

Colors that go with #015998

Charcoal, Crimson and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#984001

#01988c · #010d98

#980159 · #599801

Split-complementary

Open in tool →

#98010d · #988c01

#8c0198 · #984001 · #0d9801

Contrast

#015998 as textRatioAAAA largeAAAFix
Aaon white
7.28:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #0177cb as the text (4.5:1)
  • AAA: use #0b99fe as the text (7:1)
  • AA: or shift the background to #cccccc (4.53:1)
  • AAA: or shift the background to #fcfcfc (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #015998 as the background.

Brands using this color

Fonts for this mood

#015998 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #015998
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #015998 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/015998-9cafc4-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