Color

#170221

#170221
hex#170221
rgbrgb(23, 2, 33)
hslhsl(281, 89%, 7%)
oklchoklch(0.159 0.069 313.6)
Closest name: Black Sabbath (#220022)Relative luminance 0.0034

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0c2202

#080222 · #22021c

#221802 · #022218

Split-complementary

Open in tool →

#1c2202 · #022208

#220802 · #0c2202 · #021c22

Contrast

#170221 as textRatioAAAA largeAAAFix
Aaon white
19.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #b32bf3 as the text (4.56:1)
  • AAA: use #cb6ef7 as the text (7.11:1)
  • AA: or shift the background to #7a7a7a (4.58:1)
  • AAA: or shift the background to #9c9c9c (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #170221 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

#170221 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #170221
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 #170221 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/170221-ba9fc1-b6cb62-2d1f2c-ebe9f1?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