Color

#1f00a8

#1f00a8
hex#1f00a8
rgbrgb(31, 0, 168)
hslhsl(251, 100%, 33%)
oklchoklch(0.342 0.222 271)
Closest name: Cobalt (#030aa7)Relative luminance 0.0312

Tints & shades

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

Harmonies

Complementary

Open in tool →

#89a800

#0035a8 · #7300a8

#a81f00 · #00a81f

Split-complementary

Open in tool →

#a87300 · #35a800

#a80035 · #89a800 · #00a873

Contrast

#1f00a8 as textRatioAAAA largeAAAFix
Aaon white
12.93:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #7657ff as the text (4.58:1)
  • AAA: use #9b85ff as the text (7.19:1)
  • AA: or shift the background to #999999 (4.54:1)
  • AAA: or shift the background to #bfbfbf (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 #1f00a8 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

#1f00a8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f00a8
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 #1f00a8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f00a8-a89cc4-dfb34e-281f2d-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