Color

#210a94

#210a94
hex#210a94
rgbrgb(33, 10, 148)
hslhsl(250, 87%, 31%)
oklchoklch(0.322 0.196 273.6)
Closest name: Dramatic Blue (#240093)Relative luminance 0.0268

Colors that go with #210a94

Steel Blue, Crimson and Denim 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 →

#7d940a

#0a3894 · #660a94

#94210a · #0a9421

Split-complementary

Open in tool →

#94660a · #38940a

#940a38 · #7d940a · #0a9466

Contrast

#210a94 as textRatioAAAA largeAAAFix
Aaon white
13.67:1passpasspassPasses AAA — no fix needed.
Aaon black
1.54:1failfailfail
  • AA: use #765df4 as the text (4.64:1)
  • AAA: use #9a88f7 as the text (7.24:1)
  • AA: or shift the background to #949494 (4.51:1)
  • AAA: or shift the background to #bababa (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #210a94 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

#210a94 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #210a94
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 #210a94 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/210a94-a79cc4-dfb14e-281f2d-e9ecf1?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