Color

#1818cd

#1818cd
hex#1818cd
rgbrgb(24, 24, 205)
hslhsl(240, 79%, 45%)
oklchoklch(0.402 0.253 267.1)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0526

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#cdcd18

#1873cd · #7318cd

#cd1818 · #18cd18

Split-complementary

Open in tool →

#cd7318 · #73cd18

#cd1873 · #cdcd18 · #18cd73

Contrast

#1818cd as textRatioAAAA largeAAAFix
Aaon white
10.24:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #6464ed as the text (4.59:1)
  • AAA: use #8d8df2 as the text (7.22:1)
  • AA: or shift the background to #adadad (4.56:1)
  • AAA: or shift the background to #d6d6d6 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1818cd 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

#1818cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1818cd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1818cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1818cd-a19cc4-df994e-251f2d-e9edf1?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