Color

#02515a

#02515a
hex#02515a
rgbrgb(2, 81, 90)
hslhsl(186, 96%, 18%)
oklchoklch(0.398 0.068 207.8)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0664

Colors that go with #02515a

Crimson, Steel Blue and Teal 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.

Real palettes that use #02515a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5a0b02

#025a37 · #02255a

#5a0251 · #515a02

Split-complementary

Open in tool →

#5a0225 · #5a3702

#37025a · #5a0b02 · #255a02

Contrast

#02515a as textRatioAAAA largeAAAFix
Aaon white
9.02:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #038391 as the text (4.66:1)
  • AAA: use #04a7b9 as the text (7.23:1)
  • AA: or shift the background to #b8b8b8 (4.55:1)
  • AAA: or shift the background to #e3e3e3 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #02515a as the background.

Brands using this color

Fonts for this mood

#02515a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #02515a
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 #02515a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/02515a-a2b8be-df4e86-1f262d-e9f1ee?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