Color

#2b15a8

#2b15a8
hex#2b15a8
rgbrgb(43, 21, 168)
hslhsl(249, 78%, 37%)
oklchoklch(0.362 0.21 274.8)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0388

Tints & shades

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

Harmonies

Complementary

Open in tool →

#92a815

#1548a8 · #7415a8

#a82b15 · #15a82b

Split-complementary

Open in tool →

#a87415 · #48a815

#a81548 · #92a815 · #15a874

Contrast

#2b15a8 as textRatioAAAA largeAAAFix
Aaon white
11.83:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #7560eb as the text (4.63:1)
  • AAA: use #9989f0 as the text (7.19:1)
  • AA: or shift the background to #a1a1a1 (4.58:1)
  • AAA: or shift the background to #c9c9c9 (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 #2b15a8 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

#2b15a8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b15a8
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 #2b15a8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b15a8-a79cc4-dfae4e-271f2d-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