Color

#121abf

#121abf
hex#121abf
rgbrgb(18, 26, 191)
hslhsl(237, 83%, 41%)
oklchoklch(0.384 0.238 266.4)
Closest name: mediumblue (#0000cd)Relative luminance 0.0463

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bfb712

#1271bf · #6012bf

#bf121a · #1abf12

Split-complementary

Open in tool →

#bf6012 · #71bf12

#bf1271 · #bfb712 · #12bf60

Contrast

#121abf as textRatioAAAA largeAAAFix
Aaon white
10.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #6068f0 as the text (4.74:1)
  • AAA: use #868bf4 as the text (7.01:1)
  • AA: or shift the background to #a8a8a8 (4.59:1)
  • AAA: or shift the background to #d1d1d1 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #121abf 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

#121abf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #121abf
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 #121abf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/121abf-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