Color

#2c18dc

#2c18dc
hex#2c18dc
rgbrgb(44, 24, 220)
hslhsl(246, 80%, 48%)
oklchoklch(0.429 0.264 270.8)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0636

Colors that go with #2c18dc

Charcoal, Cobalt Blue 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 →

#c9dc18

#1867dc · #8e18dc

#dc2c18 · #18dc2c

Split-complementary

Open in tool →

#dc8e18 · #67dc18

#dc1867 · #c9dc18 · #18dc8e

Contrast

#2c18dc as textRatioAAAA largeAAAFix
Aaon white
9.25:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #7163ee as the text (4.72:1)
  • AAA: use #9288f2 as the text (7.03:1)
  • AA: or shift the background to #b5b5b5 (4.51:1)
  • AAA: or shift the background to #e0e0e0 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2c18dc 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

#2c18dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c18dc
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 #2c18dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c18dc-a59cc4-dfa74e-271f2d-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