Color

#0e21cd

#0e21cd
hex#0e21cd
rgbrgb(14, 33, 205)
hslhsl(234, 87%, 43%)
oklchoklch(0.407 0.249 265.5)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0559

Colors that go with #0e21cd

Charcoal, Crimson and Cornflower 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 →

#cdba0e

#0e81cd · #5b0ecd

#cd0e21 · #21cd0e

Split-complementary

Open in tool →

#cd5b0e · #81cd0e

#cd0e81 · #cdba0e · #0ecd5b

Contrast

#0e21cd as textRatioAAAA largeAAAFix
Aaon white
9.92:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #5868f3 as the text (4.69:1)
  • AAA: use #838ff6 as the text (7.22:1)
  • AA: or shift the background to #b0b0b0 (4.57:1)
  • AAA: or shift the background to #d9d9d9 (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 #0e21cd 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

#0e21cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0e21cd
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 #0e21cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0e21cd-9d9cc4-df8a4e-241f2d-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