Color

#181fa0

#181fa0
hex#181fa0
rgbrgb(24, 31, 160)
hslhsl(237, 74%, 36%)
oklchoklch(0.353 0.198 268.5)
Closest name: Deepsea Kraken (#082599)Relative luminance 0.0371

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a09918

#1863a0 · #5518a0

#a0181f · #1fa018

Split-complementary

Open in tool →

#a05518 · #63a018

#a01863 · #a09918 · #18a055

Contrast

#181fa0 as textRatioAAAA largeAAAFix
Aaon white
12.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #5f66e7 as the text (4.54:1)
  • AAA: use #878ced as the text (7:1)
  • AA: or shift the background to #a1a1a1 (4.66:1)
  • AAA: or shift the background to #c7c7c7 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #181fa0 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

#181fa0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #181fa0
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 #181fa0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/181fa0-9f9cc4-df924e-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