Color

#2154ab

#2154ab
hex#2154ab
rgbrgb(33, 84, 171)
hslhsl(218, 68%, 40%)
oklchoklch(0.463 0.15 260.4)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.096

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab7821

#2199ab · #3321ab

#ab2154 · #54ab21

Split-complementary

Open in tool →

#ab3321 · #99ab21

#ab2199 · #ab7821 · #21ab33

Contrast

#2154ab as textRatioAAAA largeAAAFix
Aaon white
7.19:1passpasspassPasses AAA — no fix needed.
Aaon black
2.92:1failfailfail
  • AA: use #3671d9 as the text (4.52:1)
  • AAA: use #6996e2 as the text (7.06:1)
  • AA: or shift the background to #cfcfcf (4.61:1)
  • AAA: or shift the background to #fcfcfc (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2154ab as the background.

Brands using this color

Fonts for this mood

#2154ab reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2154ab
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 #2154ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2154ab-9ca6c4-df644e-201f2d-e9f0f1?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