Color

#0318a6

#0318a6
hex#0318a6
rgbrgb(3, 24, 166)
hslhsl(232, 96%, 33%)
oklchoklch(0.346 0.215 264.6)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0343

Colors that go with #0318a6

Charcoal, Crimson and Steel Blue 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 →

#a58f03

#036aa5 · #3f03a5

#a50319 · #19a503

Split-complementary

Open in tool →

#a53f03 · #6aa503

#a5036a · #a58f03 · #03a53f

Contrast

#0318a6 as textRatioAAAA largeAAAFix
Aaon white
12.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.69:1failfailfail
  • AA: use #5067fb as the text (4.67:1)
  • AAA: use #7d8efc as the text (7.15:1)
  • AA: or shift the background to #9c9c9c (4.54:1)
  • AAA: or shift the background to #c4c4c4 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0318a6 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

#0318a6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0318a6
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 #0318a6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0318a6-9c9dc4-df864e-231f2d-e9eef1?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