Color

#242fcc

#242fcc
hex#242fcc
rgbrgb(36, 47, 204)
hslhsl(236, 70%, 47%)
oklchoklch(0.429 0.233 268.8)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0677

Colors that go with #242fcc

Charcoal, Sea Green 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 →

#ccc124

#2483cc · #6d24cc

#cc242f · #2fcc24

Split-complementary

Open in tool →

#cc6d24 · #83cc24

#cc2483 · #ccc124 · #24cc6d

Contrast

#242fcc as textRatioAAAA largeAAAFix
Aaon white
8.92:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #5f67e3 as the text (4.54:1)
  • AAA: use #8a90ea as the text (7.26:1)
  • AA: or shift the background to #bababa (4.6:1)
  • AAA: or shift the background to #e6e6e6 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #242fcc 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

#242fcc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #242fcc
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 #242fcc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/242fcc-9e9cc4-df8f4e-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