Color

#101b33

#101b33
hex#101b33
rgbrgb(16, 27, 51)
hslhsl(221, 52%, 13%)
oklchoklch(0.226 0.05 264.2)
Closest name: Dark Knight (#151931)Relative luminance 0.0113

Tints & shades

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

Harmonies

Complementary

Open in tool →

#322710

#102c32 · #161032

#32101b · #1b3210

Split-complementary

Open in tool →

#321610 · #2c3210

#32102c · #322710 · #103216

Contrast

#101b33 as textRatioAAAA largeAAAFix
Aaon white
17.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #4d73c7 as the text (4.59:1)
  • AAA: use #7795d4 as the text (7.03:1)
  • AA: or shift the background to #858585 (4.64:1)
  • AAA: or shift the background to #a6a6a6 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #101b33 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#101b33 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101b33
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 #101b33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101b33-9ca4c4-df6b4e-211f2d-e9eff1?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