Color

#100b7a

#100b7a
hex#100b7a
rgbrgb(16, 11, 122)
hslhsl(243, 83%, 26%)
oklchoklch(0.278 0.17 269.2)
Closest name: navy (#000080)Relative luminance 0.0175

Tints & shades

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

Harmonies

Complementary

Open in tool →

#74790b

#0b3d79 · #480b79

#79110b · #0b7911

Split-complementary

Open in tool →

#79480b · #3d790b

#790b3d · #74790b · #0b7948

Contrast

#100b7a as textRatioAAAA largeAAAFix
Aaon white
15.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #6860f0 as the text (4.52:1)
  • AAA: use #908af4 as the text (7.13:1)
  • AA: or shift the background to #8a8a8a (4.5:1)
  • AAA: or shift the background to #b0b0b0 (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 #100b7a 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

#100b7a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100b7a
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 #100b7a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100b7a-a39cc4-dfa04e-261f2d-e9edf1?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