Color

#210f85

#210f85
hex#210f85
rgbrgb(33, 15, 133)
hslhsl(249, 80%, 29%)
oklchoklch(0.307 0.176 275.3)
Closest name: Dramatic Blue (#240093)Relative luminance 0.0236

Tints & shades

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

Harmonies

Complementary

Open in tool →

#73850f

#0f3885 · #5c0f85

#85210f · #0f8521

Split-complementary

Open in tool →

#855c0f · #38850f

#850f38 · #73850f · #0f855c

Contrast

#210f85 as textRatioAAAA largeAAAFix
Aaon white
14.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.47:1failfailfail
  • AA: use #745eed as the text (4.57:1)
  • AAA: use #9888f2 as the text (7.14:1)
  • AA: or shift the background to #919191 (4.53:1)
  • AAA: or shift the background to #b8b8b8 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #210f85 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

#210f85 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #210f85
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 #210f85 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/210f85-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