Color

#005bdb

#005bdb
hex#005bdb
rgbrgb(0, 91, 219)
hslhsl(215, 100%, 43%)
oklchoklch(0.511 0.209 260.1)
Closest name: Denim (#1560bd)Relative luminance 0.126

Colors that go with #005bdb

Charcoal, Crimson and Amber 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 →

#db8000

#00c9db · #1200db

#db005b · #5bdb00

Split-complementary

Open in tool →

#db1200 · #c9db00

#db00c9 · #db8000 · #00db12

Contrast

#005bdb as textRatioAAAA largeAAAFix
Aaon white
5.97:1passpassfail
  • AAA: use #0051c2 as the text (7.1:1)
Aaon black
3.52:1failpassfail
  • AA: use #006aff as the text (4.51:1)
  • AAA: use #4d97ff as the text (7.19:1)
  • AA: or shift the background to #e0e0e0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #005bdb as the background.

Brands using this color

Fonts for this mood

#005bdb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #005bdb
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 #005bdb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/005bdb-9ca8c4-df5d4e-201f2d-e9f0f1?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