Color

#102151

#102151
hex#102151
rgbrgb(16, 33, 81)
hslhsl(224, 67%, 19%)
oklchoklch(0.266 0.091 265.7)
Closest name: Dark Soul (#112255)Relative luminance 0.0179

Tints & shades

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

Harmonies

Complementary

Open in tool →

#514010

#104251 · #1f1051

#511021 · #215110

Split-complementary

Open in tool →

#511f10 · #425110

#511042 · #514010 · #10511f

Contrast

#102151 as textRatioAAAA largeAAAFix
Aaon white
15.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #486fdb as the text (4.57:1)
  • AAA: use #7794e4 as the text (7.14:1)
  • AA: or shift the background to #8c8c8c (4.6:1)
  • AAA: or shift the background to #b0b0b0 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #102151 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

#102151 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #102151
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 #102151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/102151-9ca2c4-df724e-221f2d-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