Color

#150221

#150221
hex#150221
rgbrgb(21, 2, 33)
hslhsl(277, 89%, 7%)
oklchoklch(0.155 0.068 310.3)
Closest name: Black Sabbath (#220022)Relative luminance 0.0031

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0e2202

#060222 · #22021e

#221602 · #022216

Split-complementary

Open in tool →

#1e2202 · #022206

#220602 · #0e2202 · #021e22

Contrast

#150221 as textRatioAAAA largeAAAFix
Aaon white
19.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.06:1failfailfail
  • AA: use #aa35f3 as the text (4.51:1)
  • AAA: use #c473f7 as the text (7.14:1)
  • AA: or shift the background to #7a7a7a (4.6:1)
  • AAA: or shift the background to #9c9c9c (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #150221 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

#150221 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #150221
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 #150221 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/150221-b99cc4-bdcb62-2d1f2c-eae9f1?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